Stefanos Tsitsipas moved through to the semi-finals of the Hamburg European Open after a straight sets win over Dusan Lajovic. The Greek, who is the top seed left in the draw in Germany, advanced after a 7-6 6-2 win, despite having to fight back from a 5-3 deficit in the first set tiebreak. The second seed will face Chilean clay court specialist Cristian Garin for a place in the final.