By Steve Keating
Playing in his first event since winning Wimbledon last month, Nadal has at times appeared to still be in holiday mode, and he was again slow out of the blocks against world number 37 Kohlschreiber.
Nadal could not have expected such a punishing workout from the German, who has just one win over a top 10 ranked opponent this season and had never beaten the muscular Mallorcan in six previous meetings.
But Kohlschreiber soon had Nadal on the back foot breaking the Spaniard at the first opportunity and holding on to take the opening set -- the first surrendered by his opponent this week.
In the second, Nadal seized the initiative with the early break to go up 2-0 on his way to leveling the match.
(Editing by Tom Pilcher)