Keane missed just eight Premier League matches in his debut season on Merseyside and having a strong, established central defensive partner alongside him should help the four-cap player to return to his best form and possibly force his way back into the England set-up.
In case you didn't know.. He was linked to Manchester United and West Ham United this summer. Now, it seems they have set their sights on Chelsea outcast Zouma.
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Chelsea, however, do not appear too keen to sell to an immediate rival and it remains to be seen how the deal moves forward.
Zouma signed for Chelsea from Saint-Etienne for £12 million in January 2014, moving to Stamford Bridge six months later and establishing himself as a regular under Jose Mourinho until an ACL injury in Fabruary 2016 derailed his progress.
The deal sheet for the loan agreement was submitted to the Premier League before the 5 p.m. deadline on Thursday, giving Everton and Chelsea extra time to finalise the details.
The United boss is hoping to sign at least one more top class player today with a centre-back the priority and the Manchester giants have reportedly failed to agree terms for the likes of Harry Maguire, Toby Alderweireld, Jerome Boateng and Yerry Mina in recent weeks.