"It's like everything. Sometimes, players are on the pitch, sometimes we have to wait aside," the £1million summer signing from Pachuca told Televisa Deportes.
"I'm calm because I think that the time I was needed I played well, because I'm concerned about what I have to do and what the coach (Sam Allardyce) wants me to do.
"Obviously, if I'm sad it's because I'm not playing. I'll stay here and keep training until I play. When I have the possibility as my team-mates had, I'll profit from it.
"Going back to Mexico has never been in my head."