Indianapolis Colts running back Marlon Mack was able to return to practice on Thursday despite suffering from a concussion in last Sunday's win over the Miami Dolphins. Mack had himself a solid and efficient game, racking up 96 total yards before leaving late in the fourth quarter.

The Colts' top running back has had his share of struggles staying healthy this season, and backup Nyheim Hines looked very good when Mack was unable to take the field. Mack has racked up 556 rushing yards this season and has averaged 5.6 per carry, according to Mike Florio of Pro Football Talk.

The Colts have been absolutely on fire this season as they have won their last five games, including significant division victories over the Tennessee Titans and the Jacksonville Jaguars. A big portion of that success falls on the shoulders of Andrew Luck's stellar season as well as the much improved offensive line. After falling to 1-5 through Week 6, the Colts have undoubtedly turned things around and look like a completely different team with new head coach Frank Reich.

Mack has been responsible for much of the Colts' success as well. During Week 7 and 8, Mack accounted for over 250 rushing yards on 44 carries and four total touchdowns. Mack also did a lot of damage in the passing game as he caught four passes for 50 yards. Indianapolis is playing excellent football and if they keep this level of play alive, they will return to the playoffs after missing the last few seasons.