Martin, 27, is coming off a huge bounce-back season in which he finished second in the NFL in rushing (1,402 yards) and in yards after contact. He also caught 32 passes for 271 yards and scored seven touchdowns (six rushing) to make his second Pro Bowl.
In 2015, Martin was the #5 RB in standard formats (#6 in PPR), so his decision to re-sign with the Bucs will keep his value high. He will enter the season as a fantasy RB1 and will likely be drafted in the first two rounds once his ADP catches up with the news of his signing. His return to Tampa is obviously bad news for Charles Sims, but Sims will remain a good value in the middle rounds, especially in PPR formats.