Marco Reus waved farewell to Borussia Dortmund after Champions League agony on Saturday, with former team-mate Roman Burki expecting the Germany veteran to join him in MLS.

Burki ended a seven-year stay with Dortmund in 2022, switching the Bundesliga for MLS football as the goalkeeper joined the newly created St. Louis City.

The St. Louis goalkeeper faced Lionel Messi, Sergio Busquets, Luis Suarez and Jordi Alba in Sunday's 3-3 draw with Inter Miami, and hinted that the league could soon welcome another European star.

"I talked to Marco Reus ahead of the Champions League game, I texted, we didn't talk about the move then because he was obviously focused on the game, but Major League Soccer has a very good chance of seeing him next year or the summer," Burki told ESPN.

"I can't tell which team, I am still trying [to convince him] but at some point it's up to [sporting director] Lutz [Pfannenstiel] and [club owner] Carolyn [Kindle] to make a move."

Reus leaves Dortmund after 12 years with the German side, signing off with a heartbreaking 2-0 defeat against Real Madrid in the Champions League final at Wembley Stadium.

Previous reports have suggested Reus could make the switch to the United States, opening up the potential for a reunion with Burki.

St. Louis head coach Bradley Carnell would love to bring the pair back together, though warned that the move is not guaranteed.

"Every time there is a transfer window opening, whether it's our club or not, everyone gets names thrown out at them. We've had plenty of names, whether it's to join now or in six months," Carnell told ESPN.

"We go through our lists, and we see if it makes sense or not. When we are in the position that we are in, sure maybe something comes around.

"The Marco Reus rumours are flattering, it would be something interesting for the league and our team. It's one of Roman's best friends, it would be a nice fairytale story.

"But sometimes reality is far from that. We're working ways and figuring things out, but right now there's nothing to be said about the Marco Reus rumour. But the window opens up pretty soon."

St. Louis owner Kindle echoed Carnell's sentiment, adding: "It's absolutely amazing [being linked to Reus.] In full disclosure, it's difficult to separate fact from fiction.

"Sometimes I call and ask about the rumours, but I thought it would take us three to five years to get to this point of being linked to these figures and we're on year two and these rumours are amazing."