Harlequins can reclaim top spot in the Aviva Premiership table on Sunday if they beat struggling London Welsh at the Kassam Stadium.
Conor O'Shea's side have been in dominant form in recent weeks, winning their last five matches in all competitions.
In contrast, Welsh have struggled with three defeats coming in their previous four games.
Adam Balding, Paulica Ion and Michael Hills all return for the home side, while Ollie Lindsay-Hague and Jordan Turner-Hall are among six changes for Quins.
Recent form:
London Welsh: LWLLLL
Quins: LWWWWW
Lineups:
London Welsh: Arscott, Caprice, Jewell, Parker, Scott, Ross, Lewis, Balding, Hills, Jackson, Kulemin, Mills, Ion, Briggs, Montanella
Replacements: Bateman, Bristow, Tideswell, Corker, To'oala, Keates, Davies, Voyce
Quins: Lindsay-Hague, Williams, Lowe, Turner-Hall, Smith, Evans, Care, Easter, Robshaw, Guest, Robson, Matthews, Johnston, Gray, Marler
Replacements: Buchanan, Lambert, Collier, Twomey, Wallace, Dickson, Botica, Hopper
Sports Mole says: Quins to record a routine win
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