LONDON (Reuters) - Liverpool left back Andy Robertson said on Monday he had sustained ligament damage in Sunday's 1-1 friendly draw with Athletic Bilbao. "Scan suggests nothing too major but there’s some ligament damage which will need to mend. Robertson limped off at the end of the first half of the match at Anfield as he attempted to block a cross. Liverpool wrapped up their pre-season friendlies with a 3-1 win against Osasuna on Monday. Jordan Henderson and Thiago Alcantara both made their first pre-season appearances for Liverpool in Monday's match at Anfield.