I haven't seen this quote from Jose live so don't know when it was said, but saw it quoted in the papers like this
‘For how many months people are asking for Martial, Martial, Martial,’ Mourinho said before the game against West Ham. ‘For how many months people are saying that Alexis Sanchez is not playing well enough, ‘So this week was time to agree, and to say ‘let’s give a chance to Martial and let’s leave Alexis out’.’
Given many of the posts here saying this is Mou slating Martial for his poor performance, this is quite relevant if correct!