ALBION face an anxious weekend assessing injuries to Chris Brunt and James McClean from the latest pre-season friendly at Bristol Rovers.
The Baggies were beaten 2-1 at the Memorial Stadium but head coach Tony Pulis was far more concerned with the setbacks for the two left-sided players.
Albion had already withdrawn Matt Phillips from their starting XI after he reported a tight hamstring during the warm-up to the encounter.
Brunt subsequently left the action just before half-time with a calf complaint while McClean came off in the 48th minute nursing a knee injury.
Pulis said: "James' is the most concerning at the moment because it is in the knee area and we'll get that scanned to see what that tells us.
"We're hoping Chris' problem is not so serious. It's a question of whether he's strained his calf or it's just a result of landing awkwardly.
"Matty reported a tight hamstring so it made no sense to risk him.
"Pre-season is all about getting the players through without picking up injuries and so this is the most disappointing part of the game for me.
"There were some aspects of our game that pleased me and others which didn't, but we're not playing for points, we're playing for fitness."