Robson out, Nadal fights back, Tsonga cruises, Serena and Schiavone struggle, as Keothavong, Baker and Murray get underway
Britain's Laura Robson was unable to oust Francesca Schiavone despite playing some fine tennis on day two of Wimbledon losing 2-6 6-4 6-4.
The 18-year-old felt she was in control going but admitted she made too many mistakes throughout the course of the match.
"I thought I was in control of it, and then just made a few mistakes and let her get back into the match," said British number four Robson.
"I definitely believed that I could win. I think I was just trying to go for too much because she was getting much more balls back and I was just trying to stay the aggressive player in the point, keep the rallies short."
Fellow Brit and wildcard Johanna Konto, 21, was also unable to cause an upset as she lost 6-7, 6-2, 10-8 in an impressive Wimbledon debut.
Four time champion Serena Williams like Schiavone also endured a scare in her first match but eventually overcame the challenge of Barbora Zahlavova winning 6-2, 6-4.
Serena who is flying the Williams flag solo after her sister surprisingly exited yesterday was broken twice in the second but rallied to reach round two with defending champion Petra Kvitova also progressing.
World number two and two time SW19 champion Rafa Nadal is through to the second round after overcoming a slow start against Thomaz Bellucci.
The Spaniard was broken twice in the first set and went 4-0 down before recovering to win the tie break in a 7-6, 6-2, 6-3 win.
Elsewhere Jo-Wilfriend Tsonga won in straight sets against 2002 champion Lleyton Hewitt in straight sets.
Hewitt's loss coupled with Bernand Tomic's four set defeat by David Goffin means Australia are without a man in the second round for the first time since 1938.
British number two James Ward is currently in a decider against Pablo Andujar with the Londoner at 4-6, 6-0, 3-6, 6-3.
Elana Baltacha is also performing well on court 18 and leads 5-3 in the second set after losing the opener 6-4.
Andy Murray is just about to begin his opener against Nikolay Davydenko on centre court.