Levi Colville expects to return to action before the FA Cup semi-final against Manchester City, reports The Athletic.
Zahisnik recovered after an important touchdown in the match with Crystal Peles, but continued to enter the field in matches.
The club has already dealt with the serious problem, diagnosed as a deterioration of the ligaments of the metatarsophalangeal joint, but having decided that Gravtsev will need to spend an hour away from it, as after the match with Brentford it became worse.
The Blues will not name specific terms of their move, but Colville will conduct short training sessions..
It is unlikely that he will return to the field for the two upcoming matches against Manchester United and Sheffield United, and Colville is aiming to contribute to the team's application for cargo from the City.
The Manchester City - Chelsea match will take place on Thursday 20th at 19:15.