Borussia Dortmund coach Edin Terzic said he was not surprised by Jadon Sancho's quality after the on-loan forward helped the German side to a 1-0 win over Paris Saint-Germain in the first-leg tie of their Champions League semi-final.

Sancho joined Manchester United from Dortmund for 85 million euros ($91.11 million) in August 2021 but failed to hold down a regular spot and returned to Germany after becoming embroiled in a row with manager Erik ten Hag.

After impressing on the right wing against PSG, Terzic said he always sees Sancho's quality in training.

"It's maybe not so easy to bring it onto the field, especially when you haven't had rhythm for a while," he told reporters.

"We know his quality, and we saw it again today. We knew we needed a performance like that from Jadon."

Dortmund bagged the winner in the 36th minute through Niclas Fullkrug to take a slim advantage going into Tuesday's return leg in Paris.

Despite winning the first leg, Terzic knows that the tie is still all to play for in the second leg.

"We showed a very good game, a narrow win but a deserved one. It was a great teamwork performance that got us there. We wanted that small advantage. We know next week will most likely be tougher than today," he said in a press conference.

"This is just half-time and next week will be a different story. It won't be easy to deal with their power play in front of a home crowd. We felt it today from the 45th to the 60th minute.

"We felt their quality. We showed our best game against PSG, but next week they will have a euphoric backing of their fans, and they will want to turn the tie around.

It is a victory that, coupled with Bayern Munich’s draw with Real Madrid on Tuesday, secures Germany a fifth automatic Champions League spot next season.

"We wanted to qualify for the Champions League through the Bundesliga and not this way. But the fact that it will be enough to qualify as fifth is also partly down to our success, our contribution," Terzic added.

"Our minimum goal was to qualify for the Champions League. Now it [added spot] does not improve our Bundesliga season, but it does offer a softer landing."