By Tony Jimenez WOBURN, England, July 29 (Reuters) - Lydia Ko, faced with the embarrassing prospect of missing the cut at the Ricoh Women's British Open on Friday, showed why she is the world's number one golfer by delivering the goods when it mattered. "Those birdies really gave me some breathing room going down the last two holes," Ko told reporters after a two-under 70 gave her a level-par aggregate of 144. "Going into today my goal was to play all four days so I think goal number one is accomplished." Ko said the Marquess Course at Woburn was a difficult test for the players and could not believe clubhouse leader Lee Mi-rim (71) of South Korea was flying high at 11-under. More...