by Andrew Potter
Colts Halfback Marlon Mack -- Hand
Marlon Mack had surgery today on the metacarpal (hand bone) he fractured against the Jaguars. The Colts starter will be absent for "several weeks," according to reports, but he hopes to return some time in December. We have too little data on specific halfback hand fractures to project the likely duration of Mack's absence, but around 50 percent of all players miss three or more weeks and one in four miss the rest of the season. (That figure is specifically for hand fractures; wrist, finger, and thumb fractures are all counted separately.