Brandon McCarthy has a torn UCL

Brandon McCarthy has been shaky in 2015, and on Monday we found out why.

McCarthy: UCL tear, out for year

— Bill Shaikin (@BillShaikin) April 27, 2015

While the UCL tear has been confirmed, Dodgers manager Don Mattingly wouldn't say if McCarthy will need Tommy John surgery. That seems likely however, which means that he wouldn't be back in game action until midway through 2016.

It's unclear who will take McCarthy's spot on the active roster, but for the immediate future Scott Baker will take his turn in the rotation.

How will the Dodgers replace McCarthy?

In 2015, Dodgers' starters have pitched to the tune of a 4.12 FIP, and losing McCarthy is a huge blow. After being traded to the Yankees in 2014, McCarthy had a renaissance and was fantastically valuable. He turned that half season performance into a four-year 48 million dollar contract during the offseason.

With the loss of McCarthy, the Cole Hamels rumors may start to increase. The Dodgers had previously been mentioned as a landing spot for the pitcher, and with this recent news, could use one more than ever.

Bill Shaikin tweeted that Julio Urias is not an option to replace McCarthy, while listing some possibilities.

Andrew Friedman: Urias not an option to replace McCarthy. Options: Baker, Bolsinger, Frias, Lee, Wieland, Stripling.

— Bill Shaikin (@BillShaikin) April 28, 2015

Andrew Friedman seemed to quell any idea that a Hamels trade is imminent. Instead he suggested that they're prepared to fill this vacancy in house until they've completing their due diligence around the league.