On June 15, 1989, Adam Oates and Paul MacLean were traded by the Detroit Red Wings to the St. Louis Blues. Tuesday night they'll stand behind opposing benches and coach against each other as the Capitals visit the Ottawa Senators

Oates and MacLean played together on a line with Rod Brind'Amour that first season with the Blues and helped each other through the transition with a new team

"You got a buddy when you go into that strange locker room. You got someone with you so you got a little bit of an allegiance," Oates recalled Monday. "But we were both pretty sour at the time when it happened. We liked Detroit. And we got traded in the summer, and it was a shock. It was definitely a shock for me. And I know he liked it there as well. But it's a part of the job."