Given the crowded and hectic schedule of last year’s NHL season Tuukka Rask was happy to sit and watch backup Anton Khudobin play a decent number of games — 14 out of 48.

This season Rask’s new backup Chad Johnson has played zero games. That is a ratio that cannot last and it may change tomorrow night when the Bruins face the Sabres in Buffalo.

“We’ll probably give him a shot there at some point and Buffalo may be one of the games we give him” said Bruins coach Claude Julien after yesterday’s lengthy practice at Ristuccia Arena.

The B’s have had a fairly relaxed schedule but play three games in four nights starting tomorrow including a very rugged showdown Thursday at the Garden against the top-ranked San Jose Sharks.

With the first pair of back-to-back games the time is right for the 27-year-old Johnson’s first start.

“We haven’t made the final decision yet but I will put him on notice and give him probably an opportunity” said Julien. “We’re going to have to use him at some point. This might be a good chance.”

Johnson has 10 games on his NHL resume with the Rangers and Coyotes (3-2-2 1.97 .929 one shutout) and is eager to get in a game with his new team.

However he understands why Julien has not called his name yet.

“There’s been a lot of breaks in this first month and obviously you want to get Tuukka on a roll” said Johnson. “For myself it’s just about having good practices. Now we have some back-to-backs coming up and you just try to be ready. It’s just sort of (about) getting comfortable for myself and the team getting accustomed to how I like to play.”

Stay focused

The Bruins must avoid the easy trap of looking past the struggling Sabres who are 1-7-0 and have scored only 11 goals to focus on the Sharks who were 7-0-1 (39 goals for 16 against) going into last night’s game in Detroit. The Sabres won 3-of-5 games last year against the Bruins.

“Obviously San Jose has been a real hot team” said Julien. “It’s a little unfortunate the way the schedule is. We’ve got an 8 o’clock game in Buffalo. Then we get (back to Boston) fairly late and we’re playing against one of the best teams in the league. But those are things we can’t control and we just have to be ready for. We’ve got a good tough week ahead of us and we just have to be ready for it.”

Kelly kudos

Julien had rave reviews for center Chris Kelly who has three goals and the No. 3 line in general.

Kelly had a rough season last year with just 3-6-9 totals and a minus-8 in 34 regular-season games missing 14 games with a broken leg. He was scoreless in the first three rounds of the playoffs but had a pair of goals and an assist on Daniel Paille’s game-winner in Game 3 the Stanley Cup finals.

“This year he came back in really good shape because he had the opportunity to train in the summer and have a full training camp” said Julien. “I think he’s back to where he was in the finals last year (and) I thought he was really good. He’s come back this year and just continued on.”

On the line as a whole Julien said “They’ve all played well. If you look at our third line from training camp to now it’s certainly been an asset. It gives us another line that can create a lot offensively. Chris the way he’s been playing has really helped that line become that.”