The former England international joined Gloucester in the summer after 10 years at Leicester and has been selected on the wing for this weekend.
James Simpson-Daniel and Iain Balshaw are ruled out by injury, but Mike Tindall is named at centre and England full-back Olly Morgan continues at full-back. Willie Walker will make his first Guinness Premiership start of the season at fly-half, with Ryan Lamb among the replacements.
“Ryan has been in excellent form and was named as the Guinness Premiership’s player of the month but I have made it clear that the value in a nine-month season is the strength of the squad,” said head coach Dean Ryan.
Scrum-half Gareth Cooper is included in the squad for the first time following his World Cup commitments with Wales and there is also a place for lock Will James on the bench.
Ryan has rotated his front-row options by including Patrice Collazo at loose-head in place of Nick Wood, while Olivier Azam will make his 100th Premiership appearance.
“We have made a very encouraging start and so have Leicester so it has got all the makings of a very attractive game,” Ryan said. “Welford Road is a great place to play rugby, both teams are playing well and it should be a great occasion.”
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GLOUCESTER (v Leicester, tomorrow 6pm): Olly Morgan; Leon Lloyd, Mike Tindall, Anthony Allen, James Bailey; Willie Walker, Mike Prendergast; Patrice Collazo, Olivier Azam, Carlos Nieto, Peter Buxton (capt), Alex Brown, Alasdair Strokosch, Andy Hazell, Luke Narraway. Replacements: Andy Titterrell, Christian Califano, Nick Wood, Will James, Gareth Cooper, Mark Foster, Ryan Lamb