Raymond van Barneveld shocks No1 seed Michael van Gerwen at PDC worlds

• 48-year-old recovers from slow start to beat compatriot in last 16
• Gary Anderson books showdown with James Wade in quarter-finalsRaymond van Barneveld beat the world No1, Michael van Gerwen, 4-3 in a thrilling match at Alexandra Palace to reach the quarter-finals of the PDC World Championship.In a classic and dramatic affair between the two Dutchmen Van Gerwen won a competitive opening set with a powerful display before watching Van Barneveld level by winning the second as both ave