Two-time major winner Stan Wawrinka said Fernando Verdasco will be a tough third-round opponent at Wimbledon on Friday.
Stan Wawrinka said he is anticipating a "moody" Fernando Verdasco, after enduring a blessed run at Wimbledon so far.
The French Open champion has eased into the last 32 at the All England Club via three-set wins over Joao Sousa and Victor Estrella Burgos - who hail from Portugal and Dominican Republic respectively.
After the Swiss saw off the pair unlikely to bother him on a grass court, Wawrinka said he was looking forward to more of a battle with 2013 quarter-finalist Verdasco.
Sousa has won just six main-draw tour matches on grass in his career, while Estrella Burgos's round-one win over Benjamin Becker was just his second.
"I think for me it's a dangerous player on all surfaces, including grass," Wawrinka said of world number 43 Verdasco.
"I think he played a quarter-final here, he has already played against Murray [at Queen's].
"For me, since he came out of the top 10, he is a 'moody' player, and by that I mean, he can be very dangerous.
"You never know what to expect with him.
"He won two matches in five sets so he regains confidence. He likes to play on grass, he likes to be in London.
"He is left-handed, he has a very good forehand. It is always complicated to manage matches against him."
Wawrinka conceded he is not playing his best tennis, but remains positive he can increase his level.
"I'm happy to win, especially in three sets," the fourth seed said.
"This is not my best match but the most important thing is to keep moving forward.
"Confidence comes with victories, especially on grass. It is essential for me.
"It's going well in training, my game is there. I can improve a lot in the game but the key is to win matches."