Returns to The Open after a five-year gap thanks to a second-place finish at the Dubai Duty Free Irish Open on July 4.
Three spots at Royal St George’s were there to be claimed and Karlberg sealed his by chipping in on the final hole at Mount Juliet.
He was the winner of the 2015 Italian Open after a play-off with Martin Kaymer – the U.S. Open champion of the previous year – and the following May he lost by a stroke to Chris Wood in the BMW PGA Championship at Wentworth.
That helped him reach a career-high of 69th on the world rankings, but he went into the recent Irish Open down at 611th and without a top-10 finish for 22 months.
After battling illness he stepped away from competitive golf for a spell and had to go back to the European Tour Qualifying School at the end of 2019, sinking a 50-foot birdie putt on the final hole of the six-round marathon to take the last card.
Twice a winner on the Asian Tour back in 2010, when he was their Rookie of the Year.
Even earlier in his career Karlberg represented Sweden in the 2003 European Boys Team Championship.