Miguel Herrera has been fired as Mexico coach following allegations that he punched a television reporter.
Former Arsenal midfielder Abou Diaby has rejected an offer to join West Brom in favour of finding a new club in France.
The 21-year-old has only made one appearance for City, as a substitute against Bolton in the Premier League in May 2011.
He has previously spent time on loan with Ipswich, Oldham and Blackpool.
During his time at Boundary Park last season he scored the winning goal against Liverpool in the FA Cup fourth round.
Wabara has represented England at Under-20 level.