Sampras, whose struggles from 1998 continued over to early 1999, lost a third consecutive time against Rafter at the World Team Cup, in straight sets, just before the French Open. By the summer of 1999 having rebuilt his confidence, en route to compiling a 24-match winning streak of four titles including Wimbledon, Sampras prevailed against Rafter in the Cincinnati Masters final, a rematch of the previous year's final, and the two were friendly in the trophy ceremony. Later that summer, Sampras withdrew from the U.S. Open due to an injured back, while Rafter retired in the first round as a result of a torn rotator cuff.