United were comfortable 5-0 winners against the Germans, with Sorloth beginning the game on the bench.
He told VG: "We just had a very pleasant chat. He talked about the first time he saw me, it was for Rosenborg's G16 team against Clausenengen. We won 5-0 and he remembered the result. It was very nice.
"It's not so long since that match now and now I'm in the Champions League. So we talked a bit about the road until today."
On the game, the former Crystal Palace striker added: "It was a tough first match naturally enough. At the same time, we just have to forget it and think next. 'S*** happens'. We know we're better than that. It was not a 0-5 match."