Distin To Have Scan
Defender sustained suspected hamstring injury during United win.
Defender Sylvain Distin will be assessed after sustaining a suspected hamstring injury during Everton's win over Manchester United on Sunday.
The centre-back was withdrawn at half-time at Goodison Park and replaced by Antolin Alcaraz.
Martinez said: "Sylvain will have a scan tomorrow. He felt his hamstring. I just hope we pulled him out of the game just in time.
"If it's damaged, it will be difficult for him to play again this season. But, if not, maybe within a week or 10 days he will be fine."
Substitute Alcaraz produced an impressive showing on his first outing since January as the Blues held on to their two-goal advantage.
And Martinez added: "When you look at his performance, he [Alcaraz] looked like someone who had been playing every week for the last two months. It's remarkable to see the squad always ready to take opportunities."
Kevin Mirallas appeared to be limping in the closing stages of an enthralling contest, but Martinez quashed any injury fears over the Belgian.
"Kevin is fine," he explained. "He just had cramp."