Luckless Wolves winger Razak Boukari is set to be out for another three months.
Boukari has undergone an operation to repair the torn hamstring he sustained against AFC Telford United in his first pre-season friendly, after it was initially thought he would be out for six weeks.
Wolves head of medical Phil Hayward said: “Rather than be a straightforward hamstring injury, it’s actually a tear to the connective tissue between two of the hamstring muscles.
“Where a normal hamstring tear would be expected to heal within four to six weeks depending on the severity of it, this won’t heal on its own without surgery.
“It’s going to be three months following surgery before he’s back in training again.
“We’ve asked if it’s something he’s particularly prone to and the surgeon doesn’t think so.
“He thinks it’s just an unfortunate situation and it’s very unlucky the same injury’s occurred twice with the same player.”
Meanwhile, Tommy Rowe is set to play part of a behind-closed-doors friendly at Compton today but could yet figure on the bench against Cardiff tomorrow.
“He could be sub tomorrow but I’m thinking he would be best served by perhaps playing 90 minutes,” said head coach Kenny Jackett.
“We’ve got the luxury of giving him a bit more time but importantly some match practice.
“It’s still his pre-season, so you wouldn’t throw somebody into a league game after just one half of a game.”
Rowe made a 45-minute comeback from a broken metatarsal in the Under-21s against Albion Under-21s on Monday.