The Gunners, though, were understandably aggrieved when referee Mike Dean awarded a controversial penalty after Calum Chambers was whistled for a handball after his left elbow made contact with Kieran Gibbs' attempted cross two minutes from time.
Arsenal have just one win in the last 12 league meetings between the teams (1-4-7), with last season's 3-0 rout accounting for the victory. Sanchez helped Arsenal (11-5-5) pick up a point at The Hawthorns on Sunday in a 1-1 draw when his free kick deflected off Baggies defender James McClain and into the net on 83 minutes for what was ruled an own goal instead of his fourth goal in the last three matches.
"It's a good result, especially against a great side like Arsenal", Rodriguez told the club' website (www.wba.co.uk).
Next up, the Gunners will collide against an in form Chelsea side. Two previous games in seasons: 5-2 for Arsenal in the Community Shield and 0-0 in the championship at Stamford Bridge.
Wenger also confirmed the club have had no offers for Alexis Sanchez, Mesut Ozil or Jack Wilshere in the current transfer window.
Newcastle star says 'This is just the start' after victory at Stoke
The Ghana worldwide was paired with striker Ayoze Perez upfront, and the duo combined well during their time on the pitch. A bit early to say Jacob Murphy is going to really make it but certainly he is heading in the right direction.
"We are open in any position for exceptional players who can give us a plus".
Wenger acknowledged Arsenal's troublesome injury situation could inform their January business, with Sead Kolasinac (knee) joining fellow full-back Nacho Monreal (ankle), striker Olivier Giroud and midfielder Aaron Ramsey (both hamstring) on the sidelines after limping out of the 1-1 draw at West Brom.
Arsenal got the better of Chelsea in the FA Cup final and Community Shield past year, but former Gunners star Merson is tipping the west London side to comfortably claim all three points on Wednesday.
Santi Cazorla is a long-term absentee. Davide Zappacosta, Cesc Fabregas, Tiemoue Bakayoko and Eden Hazard are among those who could start.
Everyone except David Luiz and Charly Musonda should be available.