Backes in a tough spot against Blues

BOSTON — David Backes waited his entire career to play for the Stanley Cup, and now he’s going to have to do it against some of his best friends in hockey.

The former Blues captain will face his old team with the NHL title on the line, starting Monday night when the Blues and Bruins open the Stanley Cup Final in Boston. It’s not the ideal situation for the 35-year-old Backes, but after waiting 13 seasons to get to this point, he’ll take it.

“It’s a binary decision now. It’s us or them. One of us is going to win the Cup,” he said.

“That’s the position you’d want to be in at the beginning of the year. I wish those guys well up until this point, but now it’s all about us and winning this thing. All our thoughts and all our efforts are in this room.”

Backes was an All-Star in 2011 and a leader on the Blues who finished in the top seven of the Selke Award voting for five straight seasons before signing a five-year, $30 million contract with Boston in 2016. St. Louis feared Backes would be a financial burden by the end of the deal.

Backes has indeed slowed, and coach Bruce Cassidy scratched him for three games against Toronto in the first round and twice more against Columbus.

But since he returned to the lineup, the Bruins have won seven in a row to reach the finals for the third time since 2011.

Blues defenseman and team captain Alex Pietrangelo said he learned a lot from Backes during their six-plus seasons together. Their families have also become close. But he has played against Backes in the Olympics and the NHL regular season, so it’s not unfamiliar territory.

“I sent him a text yesterday to say, ‘ Thanks, and we’ll be friends again in two weeks,’ ” Pietrangelo said. “And I never got a message back. I guess they already started.”

“I told him I’m going to love him now, I’m going to love him afterward, but I’m going to hate him for the next three weeks. That’s a mutual decision,” Backes said. “We’ll patch up whatever we need to patch up afterward.”