Fifth-seeded Juan Martin del Potro has been eliminated from the Australian Open in the biggest upset of the tournament this week, beaten 4-6, 6-3, 5-7, 6-4, 7-5 by Roberto Bautista Agut of Spain. It was Bautista Agut's first win in seven matches against a top 10 player, and del Potro's fourth second-round exit in eight years at the season's first major. ''I think he played a great match over nearly four hours,'' del Potro said. He made winners with forehands, backhands, and he played always down the line very often.'' Bautista Agut had only ever played two five-set matches, losing both, and is now into the third round of a Grand Slam tournament for the first time. More...