Fresh from helping the Czech Republic beat Argentina in the Davis Cup semifinals, Berdych beat Yen-Hsun Lu of Taiwan 7-6 (7), 6-4 to maintain his record of never losing before the semifinals in Thailand. However, he hasn't advanced in his two previous appearances.
"Sometimes, I was feeling like he was a Playstation,'' Berdych said of Lu. "He was there. He was so fast. He hit so many winners.''
Simon, 5-2 against Berdych, said, "I just hope that I will beat him one more time.''
Simon said he was going to receive treatment on his back after he needed court-side help from a trainer after the first game of the third set against Igor Sisjling of the Netherlands.
After prevailing 6-4, 5-7, 6-4, the third-seeded Simon said it was a struggle to move on to the semifinals.
"I felt like I could have lost the two sets I won and I could have won the one I lost,'' he said. "It was a good win.''
Asked about the back injury, he said: "I have red lights everywhere. I felt the pain very quickly in the second game of the match. Then it was worse. I thought it would be hard to finish the match at this point but finally I was getting better. My back is not in great shape now but I hope I will be fine (Saturday).''