Michael Vick celebrates a TD against the Redskins. (Chris McGrath / GETTY IMAGES)

“We have re-signed Michael Vick as a Nike athlete,” Megan Saalfeld, a Nike spokeswoman, confirmed to CNN in an e-mail.

The Philadelphia Eagles’ quarterback, who lost his lucrative endorsement deals after serving 20 months in a federal prison because of his involvement in a dogfighting ring, was the NFL’s comeback player of the year in 2010. He has been active in speaking out about against dogfighting

“Michael acknowledges his past mistakes,” Saalfeld said. “We do not condone those actions, but we support the positive changes he has made to better himself off the field.”

He signed a two-year deal with Unequal Technologies — his first since his return to the NFL — in January. He began wearing their equipment after injuring his ribs in a game against the Redskins.