The former Manchester United man pulled up in training on Tuesday, but a scan has come back all clear and he will train as usual on Thursday afternoon.
"Chicharito (Hernandez) had only a tight hamstring but he will train at 4pm. It's not a big thing.
"He trained a couple of days ago. He felt a little bit of a tight hamstring, we scanned it - which is very important - and the scan was completely clear.
"He only missed yesterday's training, which was a light session, and he will train today and we are expecting, based on the scan and his feeling, that he will be OK."