French Open 2015: Heather Watson win sets up Sloane Stephens showdown

• Watson digs deep in 6-4, 7-5 triumph over Mathilde Johansson
• Johanna Konta goes down 7-6, 4-6, 6-2 to Denisa Allertova
• Andy Murray joined by Kyle Edmund in second round
• Nadal must silence French Open fans and doubters in first roundSuccess has been about as rare as steak tartare for British women at the French Open over the past two decades but if it was not for Heather Watson, their record would be an awful lot worse.Since Clare Wood reached round two in 1994, the nation has man