During the second round of the Charles Schwab Challenge, golfer Stephan Jaeger abruptly withdrew. Jaeger got off to a brutal start to the tournament, carding a five-over, 75 that included two double-bogeys, two bogeys and just a single birdie. His first round left him 11 shots off the leaders, who were at 6-under after the first 18 holes. Jaeger came back out for his second round on Friday morning and played nine more holes, carding two bogeys and seven pars to sit at seven-over for the tournament and 17 shots off the lead. Rather than playing the back nine, Jaeger abruptly withdrew from the tournament. Stephen Jaeger Withdrew With a Back Injury Later the PGA Tour's communications department revealed Jaeger withdrew from the tournament with a back injury. Stephan Jaeger WD during the second round of the Charles Schwab Challenge with a back injury.…