GREEN BAY, Wis. -- Martellus Bennett has said on several occasions that there’s more to him than just football. But if he decides to retire after this season -- as he indicated in an Instagram post on Saturday night -- then he would not only walk away from some significant money but also could have to repay more than half of his signing bonus.

The 30-year-old tight end signed a three-year, $21 million deal with the Packers on March 9. It included a $6.3 million signing bonus. The Packers could make Bennett repay two-thirds of that, or $4.158 million.

Bennett also would miss out on a $2 million roster bonus due on the third day of the 2018 league year next March. He also would not collect any of his $9.25 million in remaining base salaries ($3.6 million in 2018, $5.65 million in 2019) plus another $500,000 in workout bonuses ($250,000 in each of the next two offseasons). Bennett’s contract also includes $37,500 roster bonuses for each game active, meaning he would miss out on $1.2 million over the next two seasons.

Bennett would leave behind $12.95 million not including the $4.2 million in prorated signing bonus money the Packers could try to collect. In all, Bennett could be out $17.15 million if he retires after this season.

It’s been a difficult year for Bennett, who got emotional earlier this season when asked about his brother Michael’s experience with Las Vegas police. Michael Bennett accused police of targeting him because of his race. Martellus Bennett also has been outspoken that athletes should use their platform to speak out against social injustices. He was one of three Packers players who did not stand for the national anthem for a game this season.

On the field, Bennett ranks fourth on the Packers with 24 catches but doesn’t have a touchdown and has a team-high four dropped passes, which ranks tied for fourth in the NFL entering Week 8.

The Packers also lost quarterback Aaron Rodgers to a broken collarbone in Week 6.

It's always possible Bennett will play next year, and the Packers would hold his rights unless they released him.

Bennett has business interests outside of football. He has written comic books and children’s books and has founded a company called The Imagination Agency.

The Packers don’t return from their bye week until Monday, and no one from the organization has commented on Bennett’s potential retirement.