Indianapolis Colts quarterback Andrew Luck is expected to begin practicing as early as this week, a major step toward his eventual return to the playing field, according to sources familiar with Luck's rehabilitation from shoulder surgery in mid-January. Sources say Luck will likely require two to three weeks of preparation for his first start of 2017, which would project a potential return around Weeks 5 to 7, barring any setbacks. Regardless, the Colts are sticking with their edict that there is no specific timeline or deadline. Luck's quest to return has included a phone call within recent weeks to New Orleans Saints quarterback Drew Brees, who shared his experience in recovering from a major shoulder injury in 2006. That conversation led to Luck paying a visit to Brees' physical therapist, Dr. Kevin Wilk, in conjunction and cooperation with the Colts' hierarchy and medical staff, sources said. Luck had not suffered any setbacks before he turned to...