Karlsson (left) was a vice-captain in the Ryder Cup 2018 alongside Harrington (center) and Lee Westwood (right)
Europe captain Padraig Harrington has chosen Robert Karlsson as his first vice-captain for next year's Ryder Cup in Wisconsin.
Karlsson, 50, remains in the role after assisting Thomas Bjorn while Europe defeated the US 17½-10½ to win back the trophy in Paris last year.
"Anyone who was involved in 2018 would have seen this as a no-brainer choice," said Harrington, 48.
"He is very logical, very honest, he does not let the emotions go
Karlsson appeared twice in the Ryder Cup as a player, helping Europe win the K Club in 2006 and playing in the defeat at Valhalla in 2008.
" fantastic, "said the Swede.
"I asked Padraig a while ago and I'm really looking forward to this process and once again being part of a team and also helping Padraig ng the way."
The 2020 Ryder Cup is played on Whistling Straits Golf Club in Wisconsin, United States from September 25-27, 2020.