I don't think Chris Borland made a few million or even a half million per his contract . And he returned the signing bonus.

For comparison sake, here is Abbrederris contract details .

Originally Posted by: Zero2Cool 

Think of this more as an It’s a shame than a Thumbs down: Former University of Wisconsin wide receiver Jared Abbrederis, who suffered a concussion during the first practice of training camp back on July 30, once again did not practice. Although McCarthy said recently that Abbrederis had been attending meetings, and he has been spotted in the locker room multiple times, he still hasn’t gotten the go-ahead to resume practicing. With a history of concussion/concussion-like symptoms at UW, the longer Abbrederis is sidelined, the more disconcerting it becomes for a player who earned Rodgers’ respect and faith very quickly last year as a rookie before suffering a season-ending knee injury in camp.

Jason Wilde  wrote:

The Green Bay Packers haven't given up on Jared Abbrederis, and he hasn't given up on football.

The fifth-round draft pick in 2014 intends to continue his bid to make the roster even though he has been out since the first practice of training camp because of a concussion.

What remains unclear is when Abbrederis will be cleared.

The former University of Wisconsin receiver left practice on July 30 when he fell awkwardly, and although he has been attending meetings -- an indication he has progressed through part of the NFL's concussion protocol -- there are still tests he needs to pass before he can practice again.

NFL rules prevent Abbrederis from talking to reporters until he's cleared from his latest concussion but despite a pre-draft report of a lengthy concussion history, Abbrederis and his agent, Rick Smith, have long maintained he had only one previous concussion. It occurred in 2012, and he missed one game. It was the only full game he missed his college career.