Rovers boss Tony Mowbray was left "frustrated and disappointed" to only take a point away from old club Middlesbrough.
Rovers played for 70 minutes against 10 men after Mo Besic deservedly saw red for dragging back Bradley Dack when the playmaker was clean through on goal.
Charlie Mulgrew scored from the resulting free kick to give Rovers a half time lead, only for substitute Britt Assombalonga to equalise just after the hour mark to earn a share of the spoils for Tony Mowbray's hosts.
And speaking afterwards, the boss felt a failure to bag a second goal was going to haunt Rovers, who did have their chances to double their tally both before and after Assombalonga's scorching strike.
“The feeling is one of frustration and disappointment that we didn’t win the match," Mowbray reflected after the game.
“Their goal was a brilliant goal, but it wasn’t one where they cut us open and got in behind. It was a great finish.
“We got into some great areas, but I felt we needed that second goal to finish the game. Huge respect to Middlesbrough - they are good at blocking things off and getting their bodies in the way.
“They defend in numbers and they do that whether they have 10 or 11 men. Their danger up the other end comes from long throw and corner kicks.
“On the whole we saw that out, but it was frustrating to not beat 10 men in the end.
“The message was to keep switching the play and we were patient enough in getting the ball into good areas. I’m not sure David had to make a save.
“We needed that second goal, and they changed things up in the second half. We didn’t pick the right pass at times and I don’t think we had enough efforts against the 10 men.
“The mood is frustration in the dressing room, but we’ve shown this season so far we can give anyone a game in this league. Over 21 games we’re competing alright."