Manchester United manager Louis van Gaal says it's too early to understand for how long striker Robin van Persie will be ruled out.
The striker suffered an injury in the final stages of his side's 2-1 defeat against Swansea City last month and will certainly miss United's FA Cup sixth round match against his former club Arsenal.
"Only Robin van Persie is injured. Last week, I had to miss three players," van Gaal is quoted as saying by the BBC.
"Now I only have one injury and that is Van Persie. That doesn't mean that all the players are going with me.
"It's too quick [to set a date on van Persie's return], we have to wait and see. I cannot say anything on that."
Meanwhile, the Dutchman says Angel Di Maria needs more time to adapt to the pace of the English Premier League.
"I think it counts for all the players that we have bought, the first season is always difficult," he said.
"[Luke] Shaw, [Daley] Blind, [Angel] Herrera, Falcao and also [Angel] Di Maria.
"In Holland, Spain and Germany I had the same experience with players. We have to give him time, not just Di Maria but all the players. We wait and see.
"You have to manage so many aspects. Not just the game, but the culture.
"The general answer is one year [for him to settle down] but you can't give a general answer. It is easy to say that, I cannot prove that. It is not scientifically proven."
