Brazil striker Neymar is expected to be sidelined for four weeks by the ankle injury that has ruled him out of the Copa America, his club Paris Saint-Germain said Saturday.

Two club doctors diagnosed his injury as a "sprain of the lateral ligament" in his right ankle, adding he would not require surgery and would instead receive "conservative treatment."

The 27-year-old has been ruled out of the Copa America after hurting himself during the 2-0 win over Qatar in a friendly on Wednesday. 

His place in the Brazil squad will be taken by Chelsea's Willian.

The world's most expensive player is facing accusations of raping a model at a Paris hotel which the player strongly denies.

The case is being investigated by Sao Paulo police.

The four-week timeline for Neymar's recovery would see him return in time for the start of the new French season, which begins over the weekend of August 10-11.