Aston Villa manager Dean Smith will investigate how news of Jack Grealish’s injury emerged in the 24 hours before his 2-1 loss to Leicester City.
Villa’s captain was confirmed out with a leg injury, ending a run of 48 consecutive Premier League starts.
Smith said it is not a long-term problem and hopes to have Grealish available soon, although it is understood he could be out for a month.
Villa’s boss said the injury being made public “certainly” helped Leicester.
“I was made aware on social media there were rumors he was not going to play,” said Smith.
“If that is coming out of our training ground I will find out where it is coming from and reprimand whoever it is coming from.
“It is something I would not be happy with.”
On the extent of the injury, which saw Grealish unable to start his first league match in 15 months, Smith told BBC Sport: “We will assess it as we go. It is certainly not a recurrence of an old injury and certainly not long term .
“I’m an eternal optimist and I’ll hope he is back for Leeds next week but I’ll leave it to the medical staff.”
Villa face Leeds on Saturday before four Premier League fixtures in March.
Grealish will hope to feature in England’s games in March – the Three Lions are in World Cup qualifying action with games against San Marino (Thursday, 25 March), Albania (Sunday, 28 March) and Poland (Wednesday, 31 March).