Ashley Johnson scored a try as London Wasps defeated the defending champions Northampton Saints in the English Premiership.

Trailing 9-3 heading into the final quarter, Johnson latched onto a wayward Luther Burrell pass to race away and score in the right-hand corner. Two minutes later Tom Varndell scored a superb solo effort to complete the turnaround, with Wasps eventually running out 20-16 victors.

Johnson was never far from the action and was involved in an altercation with England loosehead prop Alex Corbisiero earlier in the match, for which both players saw yellow.

On Friday evening last year's losing finalists Saracens made it two from two as they eased past Harlequins, with England flyhalf Charlie Hodgson claiming 22 points in a 39-0 whitewash.

Leicester Tigers remained the only other unbeaten team with a narrow 24-20 victory away at Exeter Chiefs.

Round 2 results

Harlequins 0 Saracens 39
Exeter Chiefs 20 Leicester Tigers 24
Gloucester 34 Sale Sharks 27
Bath 53 London Welsh 26
Wasps 20 Northampton Saints 16
Newcastle Falcons 18 London Irish 20

Photo: David Rogers/Getty Images