Football fans were caught off guard earlier this year when San Francisco 49ers linebacker Chris Borland retired from the NFL after only one season. Borland had put together a standout campaign, and with Patrick Willis already announcing his retirement, he seemed in line to continue as a starter on the 49ers defense. Instead, he stunned the sports world by announcing his own retirement a week later.
Borland received a $617,436 signing bonus after the 49ers drafted him, and he has agreed to return $463,077. The 49ers will get a salary cap credit in 2016 for that amount, along with money returned by Anthony Davis (no word on Patrick Willis or Justin Smith prorated bonus money).