British No.1 Dan Evans fought through to the semi-finals of the European Open in Antwerp after saving a match point against Karen Khachanov – Russia’s world No.17 – in a contest that featured plenty of tantrums and some post-watershed language. The bad blood was not so much between the players as it was between Khachanov and chair umpire Adel Nour, who made one of the worst over-rules ever seen in an ATP Tour match in the middle of the first set. That point was not of great significance in the big picture, as Khachanov still took the game and the set, despite Nour mistakenly ruling that a ball which bounced several inches inside the baseline had flown long. “I saw it out,” he told a furious Khachanov. But the earlier error then caused Khachanov to blow up completely in the second-set tie-break. Having failed to convert a match point at 6-5, thanks to an unreturnable Evans serve, he then felt that the officials had erred again when the score stood at 7-7. Such incidents are usually resolved by Hawk-Eye challenges, but Antwerp is not supplying the ball-tracking service this year, So Khachanov raged at Nour, saying “What are you doing here? What are you for? We can call the score.”