Everton host Chelsea in the Carabao Cup fourth round in what is David Unsworth's first match in charge following Ronald Koeman's departure.
Chelsea and Everton battling to reach the last eight of the Carabao Cup amid differing managerial situations.
David Unsworth could use his second spell in caretaker charge of Everton but handing debut to two of his Under-23 side in the Carabao Cup against Chelsea.
Sarri has a release clause in his contract with Napoli worth €7.5m (£6.7m), with the Blues reportedly willing to pay him a salary of around €12m per year.
Barkley is widely expected to leave his boyhood club in the coming months but Unsworth is hopeful he can change his mind.
Chelsea have now opted against sending attacking midfielder Charly Musonda out on loan when the January transfer window opens.
Some Blues players are reported to be unhappy with manager Antonio Conte's physically demanding training schedule.
Wingers Charly Musonda Jr and Kenedy are both set to feature for Chelsea during Wednesday night's Carabao Cup fourth round clash against managerless Everton.
Hargreaves calls on the Premier League to take action against the club, who currently have 34 players out on loan.
Champions Chelsea will aim to get back to winning ways upon the visit of high-flying Watford to Stamford Bridge.
Manchester United manager Jose Mourinho admitted that he still does "cry about fixtures" after suggesting that it is not his philosophy to cry about injuries.
Eric Bailly returned to Manchester United after the last international break carrying a knock. This has forced him to miss the clash against Liverpool and Benfica.
Abraham has scored four goals in eight Premier League appearances for Swansea since joining from the Premier League champions in the summer.
Aymeric Laporte says he turned down offers to leave Athletic Bilbao, but did not rule out a move to Chelsea.
Cesc Fabregas could be Chelsea's only midfielder available to face Watford on Saturday due to the number of injuries in in Antonio Conte's squad.
Graham Stuart tells IBTimes UK that Everton's fixtures against the top six last season has been one of the major reasons for their form this season.
High-flying Watford will not welcome back any of their injured crop for Saturday's Premier League clash against struggling Chelsea at Stamford Bridge.
Tammy Abraham appears destined to remain at Swansea for the duration of the season, with manager Paul Clement confident he will not rejoin Chelsea.
Chelsea are reportedly ready to replace Michy Batshuayi in January with Crystal Palace striker Christian Benteke and Leicester City star Jamie Vardy possible options.
Cesar Azpilicueta admits morale has sunk to a low amid a run of three games without a win ahead of the visit of Watford on Saturday.
Jose Mourinho has waited until he has the higher ground to issue a barb at one of his rivals - with Chelsea boss Antonio Conte his latest victim.
Belgian midfielder Radja Nainggolan insists his focus remains on AS Roma despite long-term interest from Chelsea head coach Antonio Conte.