Williams got back to deflect Arfield 's strike .
It only served to confuse Maarten Stekelenburg who made an absolute pig 's ear of dealing with effort , diving twice and then palming it straight in the direction of Sam Vokes , who tapped home at the back post .
Williams got back to deflect Arfield 's strike but it only served to confuse Maarten Stekelenburg who made an absolute pig 's ear of dealing with effort , diving twice and then palming it straight in the direction of Sam Vokes , who tapped home at the back post .