They wear the same tennis attire right down to their sneakers and it's hard to tell them apart. Bob Bryan met his match - literally - when he faced twin brother, Mike, in the second round of the CMG Open with the latter emerging victorious 6-4, 6-4 to move to the quarter-finals at Victoria Park. 'We have played each other three times and I think I am now 2-1 up against Bob [in head-to-head clashes],' said 21-year-old Mike Bryan, who is two minutes older than Bob. 'We're the best of friends off court. It's tough playing each other because Bob hates to see me lose and I hate to see Bob lose. 'We have played each other in practice our whole life and we know each other's game inside out. We don't take long change overs and he knows when I am going to pass him and I know his game too,' he said. Father Wayne did not allow the twins to play competitively against each other until they were 16. Their mother, Kathy Blake, was a former world number 30 on the women's tour. 'Dad was pretty protective over us [in the early years]. He didn't want us to play each other because he didn't want us to form a rivalry. 'When we were juniors, we used to take turns defaulting each other when we were drawn against each other so we ended up sharing trophies,' said Mike. Mike and Bob are identical twins although Mike plays right-handed while Bob is a southpaw. 'It's quite easy to tell us apart really. Bob is slightly taller than me and I have a mole right here,' said Mike pointing to his upper lip. In a fascinating contest which produced some great rallies, Mike gained a service break in each set to beat his brother - and go further into the draw having competed in the qualifying competition last weekend. Bryan will play Austria's Martin Spottl for a place in tomorrow's semi-finals after the Austrian defeated American Michael Joyce 7-6 (7-2), 6-1. In the only upset of the day, Japanese tennis star Goichi Motomura upset fifth-seeded American Paul Goldstein 7-6 (7-5), 2-6, 6-4 to reach the last eight. 'I'm playing some of my best tennis at the moment. I'm on form and I am looking forward to my next match,' said Motomura, who meets Dutchman John van Lottum. Third-seeded Van Lottum marched to the quarter-finals with a decisive 7-5, 6-4 win over Romanian Razvan Sabau. 'My tennis was steady and I was quite confident I would win,' said Van Lottum, who reached the third round at this year's US Open.