Everton secured their first Premier League win of the season as a blunder from West Bromwich Albion goalkeeper Ben Foster condemned his side to a 2-0 defeat on Saturday.

Roberto Martinez's side had drawn two and lost one of their first three matches, but they ended that barren run in emphatic fashion at the Hawthorns.

Romelu Lukaku's early goal set the tone and Foster allowed a weak Kevin Mirallas strike to trickle into the net in the second half to seal the points for a team expected to challenge for a top four finish this season.

While Everton are off the mark, winless Albion slipped to second bottom of the table after a second defeat for new manager Alan Irvine, who suffered a frustrating reunion with the Merseyside club he served as a player and coach for several years.

Everton had been thrashed 6-3 by Chelsea before the international break and Sylvain Distin paid the price, with the French centre-back replaced by young England defender John Stones in a move that seemed to stiffen the visitors' rearguard.

Lukaku enjoyed a successful loan spell at West Brom two seasons ago and he took just two minutes to show his old club the cutting edge that made him such a favourite at the Hawthorns.

Albion defender Jonas Olsson miscued a low clearance from a Leighton Baines cross straight to Lukaku and the Belgium striker took full advantage, curling in from the edge of the area before refusing to celebrate the goal as a mark of respect for the Baggies.

Saido Berahino led the response and he troubled Everton with an incisive raid that panicked Baines into a sloppy clearance towards Chris Brunt, who smashed a powerful effort into the side-netting.

Mirallas almost doubled Everton's lead just before half-time when the Belgian winger cut in from the left and drove narrowly wide from 25 yards.

Moments later Everton forward Steven Naismith escaped without punishment from referee Anthony Taylor despite kicking out at Albion's Craig Dawson.

Naismith should have made the most of that let-off six minutes into the second half when the Scotland international fed a pass into Lukaku, who held off Olsson and forced Foster into a low save.

The ball broke back to Naismith on the rebound, but he blasted wastefully over from close range with just Foster to beat.

But Everton didn't have to wait long to settle their nerves thanks to a horrible mistake from England international Foster, who allowed a weak long-range effort from Mirallas to squirm under his body and into the net in the 66th minute.