Ronaldinho has been omitted from Barcelona squad for the King's Cup semi-final second leg against Valencia on Wednesday. The Catalan giants did not reveal the reasons for excluding the Brazilian playmaker, who has recently returned to full training after recovering from an injury. Spanish daily Marca said Barca's Dutch coach Frank Rijkaard opted not to include Ronaldinho in his 16-man squad for 'purely technical reasons'. Defender Oleguer will also miss the game after sustaining a hand injury in training. Barca welcome back Ivorian midfielder Yaya Toure and Italian full-back Gianluca Zambrotta, who missed the 2-2 draw with Almeria through suspension. The Primera Liga runners-up face Valencia at Mestalla in the cup semi-final. They need to score an away goal after the first-leg ended in a 1-1 draw.