West Brom moved within a point of the Championship play-off spots as they brushed aside out-of-sorts Preston at The Hawthorns.
Lilywhites goalkeeper Freddie Woodman made a string of fine saves before he was beaten by Okay Yokuslu's powerful 20-yard drive which found the bottom corner.
John Swift crashed a long-range shot against the bar within two minutes of coming on as a second-half substitute as the hosts continued to threaten.
Swift then pounced as Preston coughed up possession outside their own box and played in Yokuslu, who fired in his second to wrap up a seventh win in eight matches
More to follow.