Manchester City manager Mark Hughes has backed striker has backed striker Jo.
The Brazilian striker has struggled to break into the team following his arrival from CSKA Moscow in the summer.
Hughes said: "He is a young player who has come into a stronger league than he has been used to.
"It takes time and it is harder for forwards to integrate straight away. Robinho has been able to adapt quicker but he is a more experienced player.
"Jo has found it a little bit of a struggle but he is working hard in training. He will get better."
Hughes added: "There will be changes against PSG. We will look to use the squad as we need to give a respite to some key players."
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