It has already been quite a disastrous free agency for the San Francisco 49ers who have lost a lot more than the fans would surely have wanted.
It could be argued that their first loss was that of former head coach Jim Harbaugh who left the franchise 'mutually'.
They have since lost some big name players with runningback Frank Gore moving to the Indianapolis Colts and wide receiver Michael Crabtree still on the market.
Mike Lupati, Chris Culliver and Steve Johnson have all left the 49ers this off-season with some finding new teams and some remaining on the market.
During free agency this year, we have seen teams lose players in many different ways, but the 49ers have now perhaps become the unluckiest.
On the opening day of free agency, the 49ers saw linebacker Patrick Willis announce his retirement after just eight years in the league.
Now another of the 49ers secondary has made a similar announcement with linebacker Chris Borland today declaring that he will also retire.
Borland has shocked the league after announcing his retirement after just one season of playing in the NFL.
Bad for the league
Borland becoming the second 49ers linebacker to retire this year is bad for the team but the reasons that Borland has quoted is perhaps the most concerning aspect.
Borland has made his decision as a result of concerns about long term health effects of head trauma.
"From what I've researched and what I've experienced, I don't think it's worth the risk." - Borland on the risks of concussions
Concussions are the hot health topic within the NFL these days and to see one of the most promising rookies decide to end his career as a result of health concerns on the issue is a big statement.
Borland had been a standout rookie last year after leading the 49ers in tackles and he will be a big gap to fill in the San Francisco secondary.