LOCK Craig Gillies is one of three changes as Worcester Warriors prepare to face high-flying Exeter Chiefs in the Aviva Premiership at Sixways tomorrow (3pm).

Gillies is called in to join James Percival in the second row with Chris Jones ruled out after suffering concussion.

Miles Benjamin is also fit to take his place on the wing after missing the last game with Leicester Tigers.

Flanker Neil Best will start his first game since November after recovering from a broken arm and joins Matt Kvesic, who celebrates his 20th birthday on match day, and Blair Cowan in the Warriors back row.

Prop George Porter and second row Ben Gulliver both win call-ups to the replacements’ bench.

"We haven't made too many changes and have looked to the team that has done well here in victories over Gloucester, Saracens and Newcastle," said head coach Richard Hill.

"The front five of Matt Mullan, Aleki Lutui, Tevita Taumoepeau, Percival and Jones have all performed strongly as a unit to keep some very good players out of the starting line-up. However, we do make one change as Chris suffered concussion against Leicester.

"When Craig came on at Welford Road he was outstanding and called the line-outs to win virtually every one, despite us being down to seven forwards. I know he will be keen to make a big impression.

"We have such talent in the back row it is always difficult to pick just three. But Neil Best is ready to be let loose against Exeter and Matt Kvesic deserves another start after he was the pick of the forwards against Leicester.

"Exeter have really impressed me throughout the season. It is a stern test for us on home soil, but we have been pleased with our form in 2012 at Sixways."

Warriors: Pennell; Garvey, Grove, Rasmussen, Benjamin; Goode, Perry; Mullan, Lutui, Taumoepeau, Percival, Gillies, Best, Kvesic, Cowan. Replacements: Shervington, Porter, Douglas, Gulliver, Horstmann, Arr, Gray, Fatiaki.

Chiefs: Arscott; Camacho, Rennie, Dollman, Jess; Mieres, Thomas; Moon, Whitehead, Tui, Hayes, Hanks, Johnson, Scaysbrook, Baxter. Replacements: Clark, Sturgess, Budgen, Muldowney, White, Barrett, Steenson, Naqelevuki.