The Uruguay defender started his side's 2-0 win over Espanyol at the weekend, however, and is expected to be more involved during the 2014-15 season.
"I knew I had options in the transfer window. At the time I thought I'd leave, but then I saw that there was a chance that they'd count more on me than last year," Inside Spanish Football quotes the defender as saying.
"I will continue growing here, because the coaching staff is incredible and every day I learn something. It's not easy to play in the Spanish league and even less so in a team like this."
Gimenez represented his country at this summer's World Cup.