Premiership champions Harlequins made it four bonus-point wins from five games as they erased a half-time deficit to defeat Bath by 14 points.

Quins raced to a 12-3 lead courtesy of two tries from Esterhuizen.

But Bath took advantage when Harlequins were reduced to 14 men after Joe Marler was yellow-carded, with Sam Underhill and Will Stuart going over for tries to give the visitors a 17-12 lead at the break.

After half time, Marcus Smith darted over for a superb individual try as Quins regained the lead.

Joe Marchant then went over for the bonus-point try before Smith’s second touchdown completed a fantastic second-half comeback.

Photo: @Harlequins/Twitter