Aviva Premiership: Saracens v London Welsh (Sun)
Saracens give a start to Duncan Taylor at inside centre, while George Kruis comes into the back row.
Andy Saull is on the bench for the first time since fracturing his thumb before Christmas.
London Welsh will be without Gonzalo Tiesi, Neil Briggs and Ed Jackson, who are all ruled out with injuries.
Tiesi's place at outside centre is taken by Sonny Parker and No 8 Jackson is replaced by Alfie To'oala, while wing Seb Stegmann makes his debut.
Scrum half Tyson Keats has been cleared to play by the Rugby Football Union and starts for Welsh.
The club face a RFU hearing on Tuesday and have been charged with fielding an ineligible player - Keats - in a number of Premiership matches.
VIEW FROM THE TRAINING GROUND
London Welsh head coach Lyn Jones said: "We were very disappointed with the result and our performance at Exeter last week and we're determined to put that right on Sunday, "But it doesn't get any easier against arguably the best team in the Aviva Premiership at the moment." Saracens: Wyles; Short, Tomkins, Taylor, Strettle; Hodgson, Wigglesworth; Gill, Britts, Stevens, Borthwick (capt), Kruis, Wray, Fraser, Joubert. Replacements: George, Auterac, Du Plessis, Boths, Saull, De Kock, Mordt, Ransom. London Welsh: Arscott; MacKenzie, Parker, Jewell, Stegmann; Henson, Keats; Montanella, Bateman, Tideswell, Mills (capt), Kulemin, Farias, Hills, To'oala. Replacements: George, Bristow, Ion, Corker, Browne, Davies, Ross, Voyce.