Indianapolis Colts running back Marlon Mack takes off for explosive 18-yard run against Jacksonville Jaguars.

Indianapolis Colts running back Marlon Mack discussed how the offense feels with Philip Rivers at quarterback and what he has seen from rookie Jonathan Taylor in practice.

Get a view of the Indianapolis Colts training camp practice from the perspective of running back Marlon Mack as he dons a GoPro in practice.

Relive some of the best moments of the Indianapolis Colts 2019 season with running back Marlon Mack's top 10 runs.

Watch running back Marlon Mack's best plays from 2-TD game in Week 17.

Indianapolis Colts running back Marlon Mack describes his strong performance and the play of the team's offensive line following their week 17 loss to the Jacksonville Jaguars.

Wide receiver Zach Pascal's great block helps spring running back Marlon Mack score second touchdown.

Running back Marlon Mack finds a spot to rush in for a 5-yard touchdown.

Running back Marlon Mack shows tremendous vision with a patient 30-yard burst.

Offensive line paves the way for Colts running back Marlon Mack's touchdown run.

Running back Marlon Mack powers through for touchdown in his return back to Colts' lineup.

Running back Marlon Mack run for 109 yards, including 83 in the first half in Week 11 against the Jacksonville Jaguars. Here are his best plays.

Running backs Jonathan Williams and Marlon Mack each gained 100 yards on the ground in Week 11 against the Jaguars. It's a franchise first for the Colts to have two 100-yard rushers in the same game.

Running back Marlon Mack finds the end zone by breaking tackles through the Jacksonville Jaguars defense and pulling off a pair of slick spin moves in Week 11.

Running back Marlon Mack bursts through the middle on 20-yard dash.

Guard Quenton Nelson's block helps spring running back Marlon Mack's 24-yard run.

Watch the highlights from the Week 8 matchup between the Denver Broncos and the Indianapolis Colts.

Indianapolis Colts running back Marlon Mack on his performance in the team's come from behind victory over the Denver Broncos.

Running back Marlon Mack rushes for a 10-yard touchdown vs. the Denver Broncos.

Indianapolis Colts running back Marlon Mack shares his great appreciation for the team's offensive line and how much it helps having a unit that has been together for over a season.

Indianapolis Colts running back Marlon Mack discusses what he is doing to make sure that the team can carry the momentum they got from Kansas City and how important the bye week is to the team's health.

Indianapolis Colts running back Marlon Mack talks about how it felt to earn a victory over the previously undefeated Kansas City Chiefs on Sunday Night Football.

Runnning back Marlon Mack follows blockers for key fourth-down conversion.

Running back Marlon Mack muscles through would-be tacklers for 30 yards.

Indianapolis Colts running back Marlon Mack discusses his late touchdown to help seal the team's 27-24 victory over the Atlanta Falcons.

The Indianapolis Colts today elevated wide receiver Daurice Fountain to the 53-man roster from the practice squad and placed running back Marlon Mack on the Injured Reserve list. The team also signed running back Darius Jackson to the practice squad.

Indianapolis Colts head coach Frank Reich said today that tests confirmed starting running back Marlon Mack suffered a season-ending Achilles injury in Sunday's Week 1 loss to the Jacksonville Jaguars.

Indianapolis Colts head coach Frank Reich confirmed that starting running back Marlon Mack suffered an Achilles injury Sunday in the Colts' 2020 season-opening loss to the Jacksonville Jaguars. Mack will undergo further testing to determine the severity of the injury.

With a new quarterback running the show, some new weapons on offense and an up-and-coming defensive unit, the Indianapolis Colts head into Sunday's season opener against the Jacksonville Jaguars with plenty of intrigue from a fantasy football perspective. Here's the Week 1 fantasy preview.

What's the latest in #ColtsCamp from the players' perspective? Hear from running back Marlon Mack, who talks about the addition of rookie Jonathan Taylor and being utilized more in the passing game, in today's edition of "Camp Chatter."

With the Indianapolis Colts set to begin training camp soon at the Indiana Farm Bureau Football Center in Indianapolis, Colts.com previews the team's running backs.

Indianapolis Colts running backs coach Tom Rathman recently sat down for a Colts.com 1-on-1 interview. What are his thoughts on adding a fullback, Roosevelt Nix, to the mix, having the possibility of two 1,000-yard rushers in Marlon Mack and Jonathan Taylor and more?

Take a look at the burning questions at each position as the Indianapolis Colts set to report to training camp July 28 at the Indiana Farm Bureau Football Center. We continue today with the running backs.

Judging from Indianapolis Colts head coach Frank Reich's track record as a playcaller, it would be wise for fantasy football team owners to invest in Colts running backs and tight ends this season.

With the 2020 regular season right around the corner, what are some milestones for the Indianapolis Colts and their players to keep an eye on?

Indianapolis Colts offensive coordinator Nick Sirianni recently sat down for a Colts.com 1-on-1 interview. What are his thoughts on new quarterback Philip Rivers, what he took away from the 2020 NFL Draft and the Marlon Mack-Jonathan Taylor combination at running back?

After reaching his first 1,000-yard season in 2019, NFL.com has named Indianapolis Colts running back Marlon Mack as one of the league's most-explosive runners.

In this week's Colts Mailbag, readers inquire about if more work will be done to add depth at tackle, whether "smashmouth" is the right approach for the Colts, who starts at running back between Marlon Mack and Jonathan Taylor and much more.

Indianapolis Colts running backs coach Tom Rathman this week is a guest on the Colts Official Podcast, where he discusses the development of top running back Marlon Mack, how Nyheim Hines has been able to elevate his game, the emphasis he places on ball security and much more.

The Indianapolis Colts and their dominant run game travel south to take on the Jacksonville Jaguars this Sunday. The Colts had over 250 rushing yards the last time these teams played in November. What might this week look like for your fantasy football lineups?

The Indianapolis Colts were all over Pro Football Focus' 'NFL Week 16 Team of the Week' and had several other players near the top of their respective positional rankings after the team defeated the Carolina Panthers, 38-6, on Sunday in Indy.

With 16 rushing attempts for 95 yards and a touchdown in Sunday's Week 16 victory over the Carolina Panthers, third-year Indianapolis Colts running back Marlon Mack eclipsed 1,000 rushing yards on the year for the first time in his career.

The Indianapolis Colts could provide some firepower for your fantasy football rosters this week in the championship round. Let's take a look at the matchup they have ahead on Sunday with the Carolina Panthers.

The Indianapolis Colts had two players selected to play in the 2020 Pro Bowl, but seven others were selected as alternates — five on offense, one on defense and one on special teams.

The Indianapolis Colts take on the New Orleans Saints this week at the Mercedes-Benz Superdome to help decide whether or not many of us get to our fantasy football championships. Let's take a look at the matchup they have ahead with the Saints.

The Indianapolis Colts today held their first of three practices to prepare for Monday night's Week 15 matchup against the New Orleans Saints. What all did we learn on the day?

The Indianapolis Colts' offense should be getting a much-needed shot in the arm today against the Tampa Bay Buccaneers, as wide receiver Parris Campbell and top running back Marlon Mack are expected to return after missing multiple games with injuries.

The Indianapolis Colts take on the Tampa Bay Buccaneers this weekend in a matchup that could create some explosive fantasy performances. Here's what to expect from the Colts players on your fantasy rosters in Week 14 against the Buccaneers.

Indianapolis Colts head coach Frank Reich announced today that three players — wide receiver T.Y. Hilton, cornerback Kenny Moore II and kicker Adam Vinatieri — have been ruled out for Sunday's Week 14 matchup against the Tampa Bay Buccaneers. Wide receiver Parris Campbell and running back Marlon Mack are expected to play, meanwhile.

The Indianapolis Colts on Thursday held their second of three days of practice to prepare for Sunday's Week 14 road matchup against the Tampa Bay Buccaneers. What all did we learn on the day?