Wehrlein was unsurprisingly confirmed this morning at Sauber, finally concluding on his end speculation that the 22-year-old could still be in for a chance to join Mercedes as Lewis Hamilton's team mate.
"We are very pleased to confirm Pascal Wehrlein as our second race driver for the 2017 Formula One World Championship," Kaltenborn said.
"Pascal has shown his talent throughout his career – in single seater racing as well as in the DTM. Last year in his rookie Formula 1 season, he proved his potential by scoring one point in the Austrian GP in Spielberg.
"There is surely more to come from Pascal, and we want to give him the chance to further grow and learn at the pinnacle of motorsport. I am confident Marcus and Pascal will form a solid combination for 2017."