Andres Iniesta set for tests after injuring calf in Barcelona's win
Andres Iniesta will have tests on a calf problem on Friday after being forced off during Barcelona's 1-0 Copa del Rey win over Real Sociedad.
Neymar scored the only goal of the game from the penalty spot as Barca ended a 10-year wait for a win at Anoeta, but the victory was tainted by Iniesta's injury.
The midfielder was replaced by Andre Gomes at half-time after complaining of a light pain and the Blaugrana will hope that the knock is nothing serious.
A statement from the club after the game confirmed: "Iniesta was substituted due to a problem with his left calf. [On Friday], he will have more tests back in Barcelona."
Iniesta missed six weeks with a knee injury earlier in the season, returning as a second-half substitute in December's draw with Real Madrid.
Barca underwent a slump in results without him -- drawing four out of five games at one point -- and his return to action prompted a five-game winning run.
Rafinha is currently the only Barca player missing through injury. A hamstring problem kept him out of Thursday's game in San Sebastian, but he's not expected to be sidelined for too long.
The win against Real Sociedad gives Barca a one-goal advantage going into next week's quarterfinal second leg at Camp Nou.
Samuel Marsden covers Barcelona for ESPN FC. Follow him on Twitter @SamuelMarsden.