London, Jan. 24 -- Everton manager David Moyes has described Jack Grealish's injury as a "big blow" after the winger was diagnosed with a stress fracture in his foot.

The 30-year-old is currently on a season-long loan from Manchester City and has featured prominently for Everton, making 22 appearances in all competitions.

During that time, Grealish has scored two goals and provided six assists.

"It's a big blow because he's been hugely important to us since the start of the season," said Moyes.

"It's not for me to give the timescales - we've not got it from the doctors yet," he said.

Grealish completed the full 90 minutes in Everton's 1-0 Premier League victory over his former club, Aston Villa, on Sunday.

Everton, which sits 10th in ...