Wigan thought they had scored again when right winger Josh Charnley got to the line after being only half - stopped by Foster .
Referees boss Stuart Cummings , pressed into service as video official , ruled he failed to ground the ball .
Wigan thought they had scored again when right winger Josh Charnley got to the line after being only half - stopped by Foster but referees boss Stuart Cummings , pressed into service as video official , ruled he failed to ground the ball .