Jonny May injury mars Leicester’s dismantling of Northampton

• Leicester 23-15 Northampton• Tries from Ben Youngs and Jordan Olowofela score for TigersNorthampton’s bid to achieve a hat-trick of Premiership victories against their East Midlands rivals was washed away in the rain as Leicester’s full-back Jonah Holmes defied the conditions to inspire his side’s first successful road trip this season.The match was switched to Twickenham to help raise funds for Northampton’s former Australia centre Rob Horne, who lost the use of his right arm after making a tackle in the derby against Leicester at Welford Road last season. Related: Gloucester’s Danny Cipria…