Novak Djokovic marked his return from injury with a hard-fought second-round victory over talented Argentine Tomas Martin Etcheverry at the Italian Open.
Serbia's Djokovic, who missed the recent Madrid Open with an elbow injury, won 7-6 (7-5) 6-2.
The defending champion is aiming for a seventh title in Rome, where he has never lost before the quarter-finals.
British number one Cameron Norrie beat France's Alexandre Muller 6-2 6-3 to reach the third round.
Norrie, 27, will play Hungary's Marton Fucsovics, who won 6-3 6-4 against Australia's 17th seed Alex de Minaur, on Sunday.
Djokovic, who turns 36 this month, faces Bulgaria's 26th seed Grigor Dimitrov, a 6-4 7-6 (7-3) winner against 2008 champion Stan Wawrinka.