The Irish international hit a rasping effort whilst messing about in training today.
Everton are hoping that Tom Cleverley, Gareth Barry and Aaron Lennon will all be available for the weekend's FA Cup tie.
The pre-war forward is most famous for seven goals in one game v Aston Villa.
Hearts would go on to secure automatic-promotion to the Scottish Premiership last season after finishing 24 points clear of the Gers.
Roberto Martinez is starting to come under pressure at Everton.
The Leeds United boss is already looking ahead to the next campaign.
Tottenham Hotspur and Borussia Dortmund will face each other in the Europa League this week.
The IFK Gothenburg talent is trialling with the club this week.
Marco Matias has played just two matches for Sheffield Wednesday since the end of September.
Each of Newcastle United's senior squad have come in for criticism of late, but here are three players who should remain at the club on a long-term basis.
Liverpool played out a 1-1 draw with Bordeaux away from home in the Europa League on Thursday evening.
Dietmar Hamann says that Liverpool should stick with manager Brendan Rodgers.
Chelsea-owned Crystal Palace forward Patrick Bamford was impressed with Dele Alli’s performance for Tottenham Hotspur in the Europa League on Thursday.