Augusta, April 11 -- Top-ranked Scottie Scheffler and England's Justin Rose scrambled not to lose ground on co-leaders Rory McIlroy and Sam Burns early in Friday's second round of the Masters. Scheffler began with two pars, Rose opened with a bogey and even the charge of American Wyndham Clark was blunted by a bogey to start the back nine at firm and fast Augusta National. Defending champion McIlroy, trying to become only the fourth golfer to capture back-to-back Masters titles, and Burns were on five-under par with Friday afternoon starts scheduled. McIlroy, in the day's penultimate group, managed his second-best Masters start on Thursday with a five-under 67 despite finding only five of 14 fairways. Burns, the 54-hole leader at last year'...