Brown (31) managed barely 30 of his 361 appearances for United in the last three Premier League campaigns, with injuries having taken their toll. That is a statistic he is determined to address after agreeing to move to Wearside.
Asked about his ambitions, he said: "Last season, I was fine, I just didn't get into the team, so it was a little bit frustrating. But that's football and you move on. I am just delighted to be here now to help Sunderland push forward.
"Personally, it would be good to be playing every week, trying to help the team win and playing well.
"Everyone will be looking to push the club forward and start challenging for those European places, and who knows beyond there?
"That's what teams always aim for at the beginning of the season, and we will be no different. But obviously, the squad will be a lot stronger."
Brown admitted that the hunger to be involved week in, week out made his decision to leave United reasonably straightforward but, with several options having been presented to him, Bruce was a major factor.
Meanwhile, the Black Cats were last night also closing in on a free transfer move for Blackpool midfielder David Vaughan.