Wigan Warriors winger Josh Charnley to join Sale Sharks in cross-code switch

• Wigan offered Charnley a new contract but he opted to switch codes• 24-year-old played 152 times for Wigan, scoring 148 tries since 2010Josh Charnley will switch codes at the end of the season when he leaves rugby league side Wigan Warriors to join Premiership rugby union club Sale Sharks.The 24-year-old has played 152 times for Wigan, scoring 148 tries and kicking 94 goals since making his first-team debut in 2010, helping the club win two Super League Grand Finals and two Challenge Cups while finishing as the top try-scorer in Super League in both 2012 and 2013. Related: Danny Cipriani ins…