Portsmouth have named Richie Barker as their new manager and Steve Coppell as director of football.
Wigan have announced Uwe Rosler as their new manager after agreeing compensation with Brentford.
Higuain has struggled to hold down a regular place in Jose Mourinho's side this season as he battles with Karim Benzema for a place in attack.
The Argentine ace is also thought to be stalling over signing a new deal, alerting a number of Premier League clubs to his possible availability in the summer.
Higuain is remaining coy about his future and refused to commit himself to the Spanish giants beyond the end of the current campaign.
"I am available to the club but I will not say any more. This is not the time," Higuain told Marca.
"I can only say that I'm committed to the club and will help the team until the end of the season."