The Belgium international was forced off in the midweek win over Newcastle with a back problem which left him struggling to walk but not before trying to soldier on for the good of the team.
It is why Martinez expects the 22-year-old to take his place in the side to face Stoke on Saturday.
"He looked a lot freer yesterday. He is back to himself," said the Toffees boss.
"After the game he found it difficult to walk without pain, it was a really difficult injury because all of a sudden he couldn't feel the back of his legs and we were worried but there is no further damage.
"We will make an assessment based on how he does in training but he never wants to miss games.
"Even when he had the knock in the game he wanted to run it off and stayed on the pitch for 12 or 13 minutes where he couldn't run around.
"He is reliable and that is why I am positive about him being available because he knows how to make himself available for games.
"It is always important to have that consistency throughout the season and Rom has been giving us that and I hope he will be pain free."
Source: PA