Jack Draper claimed a tight victory in his long-awaited return from injury as Great Britain took control of their Davis Cup qualifying tie against Norway.
British number one Draper spent five months on the sidelines with a broken bone in his service arm.
His comeback was delayed twice by injury and he missed the Australian Open in January to complete his recovery.
However, he served well, moved powerfully and displayed a brutal ball-striking to beat Viktor Durasovic 6-2 6-2 in his first competition in 164 days.
The Sterner tests will await world number 13 Draper, who is ranked 300 places above Durasovic, but he will be relieved to have won through a convincing victory after a long season.
“It’s been a tough time but I know I have to keep practicing and keep learning about myself,” said the 24-year-old.
Norrie then gave Britain a 2-0 lead in the tie with a characteristic 6-4 6-4 win over impressive teenager Nicolai Budkov Kjaer.
Lloyd Glasspool and Julian Cash could end the best-of-five tie for Britain at the earliest if they win the doubles on Friday.
If not, Draper and Norrie will have to take the court again for reverse singles.
The winner of the Oslo tie will face either Australia or Ecuador for a place in the eight-team Finals in November.