BLACKBURN Rovers defender Adam Henley will be out for up to a month.

The right-back joins fellow hamstring injury victim Elliot Bennett on the sidelines after coming off at half-time in Saturday’s 3-0 defeat at Wigan Athletic.

Rovers boss Owen Coyle said: “Young Adam Henley was injured at the weekend and will miss out for a period of three-four weeks.

“He’s tweaked his hamstring. I don’t think it’s as severe as Elliott Bennett’s but it’s still enough for the boy to be in discomfort.

“Adam will work with (head of sports medicine) Dave Fevre and we’ll see how long he will be.”

Henley has started both of Rovers’ Championship matches at left-back after summer signing Stephen Hendrie missed parts of pre-season.

But Hendrie, the club’s only recognised left-back, and winger Craig Conway are set to start tomorrow night’s trip to Cardiff City after starting last Tuesday’s 3-1 EFL Cup win at Mansfield Town before coming off the bench against Wigan.

Coyle said: “Craig Conway is now back up to full fitness, young Stephen Hendrie as well.

“They both missed bits of pre-season but we managed to get them 70 minutes in the cup tie at Mansfield last week and, having had that platform, they came into the game on Saturday, and now they probably feel ready to start at Cardiff.”

As well as winger Bennett, Coyle will certainly be without midfielder Corry Evans tomorrow.

But centre-back Elliott Ward joined in training yesterday after sustaining an ankle injury in the opening day 4-1 home loss to Norwich City.

Coyle said: “Elliott Ward has done some training with the group and we’ll see if there’s any reaction to that.

“Corry Evans has done some stuff with the medical side. Hopefully moving into the days coming he will step that up.

“When he came back from the Euros he only did two days of pre-season so he’s a bit off in that respect.

“But I’m pretty sure he’s champing at the bit to get back involved.

“He’s a good lad and a good player and, of course, when he’s fit and available, he’ll certainly help us.”

Asked whether he had the scope to change his team, Coyle, who has been impressed by youngsters Scott Wharton and Connor Mahoney, said: “There’s one or two other areas we might look at if we can change.”