The defender has opted to reunite with Brendan Rodgers at the Scottish champions.
Sam Allardyce chooses the best XI he has worked with, including Bolton Wanderers and Newcastle United stars.
The Championship season kicks off in just under two weeks but speculation persists regarding Jackett's future.
The striker left the Scottish Premiership side earlier this summer.
Peter Beardsley believes Newcastle United's U21 side have a couple of very exciting talents among the group.
Mark Warburton has signed nine players for Ibrox side Glasgow Rangers, but he loves this one's attitude so far.
The defender joined Liverpool from Augsburg earlier this month.
Leicester City took on Celtic in the International Champions Cup this weekend.
Ibrox side Glasgow Rangers are set to face Stranraer tomorrow.
Newcastle United have signed Grant Hanley from Blackburn Rovers.
We continue our countdown of the greatest players in Aston Villa's history with a striker who enjoyed an incredible 50-goal season during his time at the club.
The remaining three players in our list effectively pick themselves, so it should come as no surprise to you that this winger has been rated in third place.
Bill Slater is one of two players to win the FWA Footballer of the Year at Wolverhampton Wanderers, so it's no surprise that he rates highly in this list.