Top-ranked Serena Williams extended her winning streak to a career-best 22 matches and reached the Italian Open semifinals by beating Carla Suarez Navarro 6-2, 6-0 Friday.
Williams had twice won 21 in a row before, although both of those streaks came more than a decade ago, in 2002 and 2003.
Showing off near-perfect form less than 10 days before the French Open, Williams has dropped only three games in her last two matches
The 15-time Grand Slam champion has also won her previous three tournaments.
Williams will next face either two-time Rome winner Jelena Jankovic or Romanian qualifier Simona Halep.