<p>LOS ANGELES -- Dodgers starter Chad Billingsley is on the comeback trail following season-ending surgery on his pitching elbow and has started a throwing program.</p><p>Billingsley is working out at the Dodgers' Spring Training facility at Camelback Ranch-Glendale. The right-hander made two starts with the Dodgers this season before undergoing Tommy John surgery in April.</p><p>Matt Kemp is also rehabbing in Arizona, and the Dodgers remain optimistic the outfielder could play in the Majors before the end of the month. Kemp ran on an anti-gravity treadmill Thursday for the second time in as many days after feeling tightness in his right hamstring last week. With the Dodgers opening a four-game series on the road against the D-backs Monday, Kemp will have a chance to be evaluated by the club's medical staff.</p><p>Chris Capuano is scheduled to test his strained left groin in a bullpen session Friday. If all goes well, the left-hander could return to the rotation for the remainder of the regular season or transition to a relief role as a likely tryout for the postseason.</p><p><a href="http://mlb.mlb.com/news/article.jsp?ymd=20130912&content_id=60401586&notebook_id=60403600&vkey=notebook_la&c_id=la">Keep reading...</a></p><p>Read also:</p><p><a href="http://losangeles.dodgers.mlb.com/news/article.jsp?ymd=20130912&content_id=60400754&vkey=pr_la&c_id=la">2014 Dodger season tickets go on sale</a> (Los Angeles Dodgers)</p><p>Explore: <a href="http://news.google.com/news/more?ncl=dRKF9FfHSoBBo9MqR00UKE7s9qPLM&ned=us">10 additional articles.</a></p>