Mardy Fish won his first-round match at the Western & Southern Open Tuesday, while fellow American Andy Roddick was shown the exit. The 10th-seeded Fish used 11 aces to blow by Spain\'s Feliciano Lopez 6-2, 6-3 on the hard courts at the Lindner Family Tennis Center. Roddick, seeded 16th, was taken out by French lucky-loser Jeremy Chardy 7-6 (7-4), 6-3 (a lucky loser loses a match, but is let back into the tournament when another player withdraws). Roddick was leading 2-1 in the second set when he was tended to by a trainer for an apparent back problem. Fish lost to Roddick in the finals of this Cincinnati tournament in 2003 and also reached the title match in 2010. Roddick also won in 2006 and was the runner-up in 2005. In other Tuesday first-round action, No. 14 seed Japanese Kei Nishikori easily handled Spaniard Marcel Granollers 6-1, 6-2; Cypriot Marcos Baghdatis upset 11th-seeded Colombian Alejandro Falla 6-4, 6-1; American wild card Sam Querrey rallied to a 4-6, 6-2, 6-4 victory over Austrian Jurgen Melzer; German Tommy Haas edged by David Nalbandian of Argentina 6-7 (0-7), 7-6 (7-4), 6-3; Czech Radek Stepanek whipped Spaniard Albert Ramos 6-2, 6-2; Argentine Carlos Berlocq beat Colombian Santiago Giraldo 7-5, 6-3; and Russian Alex Bogomolov Jr. dropped Finland\'s Jarkko Nieminen 6-4, 6-3.. In a second-round match, Aussie Bernard Tomic defeated American wild card Brian Baker 6-4, 6-3. Querrey\'s win earned him a match against defending champion Andy Murray, who\'s seeded second following his gold-medal performance in the Olympics. Bogomolov will meet Wimbledon champion and Olympic silver medalist Roger Federer, who is this week\'s top seed. Federer won this event in 2005, 2007, 2009 and 2010.