Wasps lack venom in win over Zebre as Ashley Johnson scores two tries

• Zebre 27-41 Wasps • Dai Young’s side away to Leinster in quarter-finalsMission accomplished for Wasps but where they were expected to swagger, Dai Young’s side spluttered their way to the bonus-point victory that rubber stamps their place in the knockout stages. The scoreline may suggest this six-try triumph, which books a quarter-final away to Leinster, was achieved with plenty of room to spare but that does not do Zebre justice nor explain the error-strewn nature of Wasps’ performance.That they are away to Leinster, despite winning the pool, owes much to their controversial defeat last mon…