Gloucester boss Dean Ryan:
"I believe in 12 to 15 months' time, he (Lamb) will be one of England's most exciting players.
"He is an exciting talent, he plays very flat and is a smart and instinctive player.
"But we could not get high field position. We've got Mercier, a 70-metre, goal-kicking number 10 and that's what he is here to do.
"It obviously didn't work out how we would have liked because we didn't win but we couldn't keep playing from our own 22 so we decided to change things tactically.
"It didn't work."
Sale: Robinson, Cueto, Taylor, Seveali'i, Hanley, Hodgson, Wigglesworth, Coutts, Titterrell, Stewart, C. Jones, Schofield, White, Lund, Bonner-Evans.
Replacements: Larrechea for Cueto (75), Turner for Coutts (40), Bruno for Titterrell (50), Lobbe for Schofield (40). Not Used: Day, Courrent, Ripol.
Gloucester: Morgan, Simpson-Daniel, Tindall, Allen, Foster, Lamb, Richards, Collazo, M. Davies, Powell, Pendlebury, Brown, Buxton, Hazell, Forrester.
Replacements: Mercier for Lamb (60), Eustace for Pendlebury (54), Narraway for Buxton (66), Forster for Forrester (12). Not Used: Elloway, Thomas, Bailey.
Sin Bin: Powell (10), Tindall (64).
Att: 10,140
Ref: Dave Pearson (RFU).