Manchester United are not getting the best out of Alexis Sanchez, says manager Jose Mourinho.
Chile international Sanchez, 29, joined in January from Arsenal on a four-and-half-year contract in a swap deal with midfielder Henrikh Mkhitaryan.
But the forward has scored only once in eight appearances since arriving at Old Trafford.
“He is learning how to play with us and we are learning how to get the best out of him,” said Mourinho.
The difficulties of integrating a player midway through the season mean Mourinho is not a fan of the January transfer market.
“What is wrong is that he came at the worst moment of the season, in the winter market,” the Portuguese said.
“That’s why I don’t like the winter market very much. I think [signing Sanchez] was a chance that we didn’t want to lose and we made it, but we don’t believe a lot in the winter market.
“For sure next season will be better for him.”