Besiktas manager Senol Gunes said he believes "something is wrong" with goalkeeper Loris Karius after he conceded a soft goal in a 3-2 win against Konyaspor at the Vodafone Park Stadium on Sunday night. Karius could probably have done better in dealing with Omer Ali Sahiner's 20th-minute equaliser, the German keeper failing to make what should have been a routine save and conceding his 37th goal of the season in the process. The 25-year-old was then heckled and jeered by his own fans for the remainder of the game, but there was little he could have done about the second goal when Moryke Fofana exploited the Besiktas defence and chipped the ball over Karius in the 75th minute. Besiktas have scored the most goals in the league (50) but have struggled defensively conceding 34 goals -- almost three times as many as leaders Basaksehir (12). Karius, who has received a mixed reception since making his move from Anfield to Istanbul, has kept five clean sheets in 21 league games this season.