The official Gloucester website rounds up the latest on player fitness after last weekend's completion of the Premiership season.
Phil Vickery and Mike Tindall will both sit out this summer's England and Lions schedule after recent injuries.
Tindall, who joins Gloucester from Bath this summer, underwent a non-urgent, but necessary operation on a shoulder injury this week.
The 26 year-old centre, who missed the final few months of the season with a foot injury, had hoped to return to first team action for the end of season run-in and then possibly the Lions tour.
Once Tindall was ruled out of Bath's remaining fixtures and the Lions campaign it was decided he would have the shoulder operation, that will see the recent Kingsholm recruit return to action fully fit during Gloucester's pre-season.
Gloucester's players are set to start pre-season activities at the end of June, and Tindall will very much be part of the build-up whilst he continues rehabilitation on his shoulder, with the aim to have him available for pre-season games in mid-August.
Phil Vickery was also ruled out of both the Lions and England's Churchill Cup tour through a broken arm that he sustained against Bath in February.
The 29 year-old is continuing his recovery from the fracture, and is also scheduled for a return to full training at the end of June.
Marcel Garvey missed the final run-in of matches with an elbow injury, which he continues to have treatment on.
Henry Paul, who has also been unavailable for the last few weeks of the season, is continuing the rehab work on his knee injury, and should be back to full fitness within the next three to four weeks.
James Parkes injured a wrist earlier in the year and was ruled out of the last few months of the season. The young hooker is also targeting a pre-season return.
Jon Goodridge (shoulder), Jake Boer (broken hand), Terry Fanolua (back), Andy Hazell (head), Simon Amor (hip) and Olly Morgan (hamstring) will all continue their rehab work over the next few weeks in order to be fully fit for the start of pre-season.
Both Morgan and Amor also have international duties, with England U21s and England Sevens respectively, over the summer.
With such a short turnaround between the two games, and Gloucester looking to reintegrate several players into the line-up after the Autumn international series, Tom Savage told GRTV that the Cherry and Whites will keep changes to a minimum for the European Rugby Challenge Cup game in Zebre on Saturday.
Gloucester travel to Italy this weekend to take on Zebre in Round Four of the European Rugby Challenge Cup. The Cherry and Whites defeated the Italian side 35-10 last Sunday, but Director of Rugby David Humphreys is looking for an improved performance in the return fixture.
Skipper Billy Twelvetrees, speaking to GRTV after the 35-10 over Zebre, was happy with the bonus point win over the Italian side but admitted Gloucester will need to tighten up for the return fixture in Parma.
Gloucester Rugby welcome Sione Kalamafoni, Greig Laidlaw and Tom Palmer back to the starting line up and feature David Halaifonua in a matchday squad for the first time, as they resume Aviva Premiership action against Bath Rugby at Kingsholm on Saturday (kick off 5:30pm).