India's top singles player Sumit Nagal advanced to the singles quarterfinals of the Prague Open with a come-from-behind win over lower-ranked Jiri Lehecka. (More Tennis News)
Sixth seed and world number 127 had to battle hard to prevail 5-7 7-6(4) 6-3 in two hours and 21-minute second-round contest of the Euro 137,560 clay court event.
Nagal plays three-time Grand Slam winner Stan Wawrinka in the next round. The Swiss also registered a come from behind win against Germany's Oscar Otte, 3-6, 7-5, 6-1.
Nagal is also competing in the doubles draw. The other Indians featuring in the doubles are Divij Sharan and N Sriram Balaji.
