Speaking to the Official Club Website after the game Keane said: "It was a great start for us, the perfect start and we looked comfortable for the first-half.
"It was a good ball in from David and Murph did well to get on the end of it. But we needed a second goal, particularly in the Championship where teams can score from set-pieces and we saw that again today.
"Middlesbrough gave us a few scares in the second-half and after they scored, they had the momentum so the result was probably about right.
"I was fairly pleased with our performance generally. It was a disappointing goal to concede but we defended fairly well against a decent side.
"It was a risk putting David and Murph in because they've not had a lot of football and Jon Walters, who has been out with a hamstring injury and hasn't trained much but they came through well.
"I was delighted with the two new lads, they linked up well and their fitness levels were excellent but we have another game on Tuesday and we will have to be careful with them."