London - Andy Murray survived a shoulder injury scare to make the Wimbledon last 16 with a 6-2, 6-2, 1-6, 6-1 win over Italy's Andreas Seppi on Saturday.
Murray, the 2013 Wimbledon champion, required a medical time-out for treatment on his right shoulder after dropping the first game of the fourth set.
But the world number three then reeled off six games in succession to set up a clash against Croatian giant Ivo Karlovic on Monday for a place in the quarter-finals.
Third seed Murray raced through the first two sets before 31-year-old Seppi called for treatment on his right ankle.
It worked wonders for the 25th seed, who captured the third set and was a break to the good in the fourth.
But Murray was revived by his shoulder treatment and swept through the remaining six games, taking victory on his 10th ace, having also hit 32 winners.
"The shoulder is fine. You probably saw towards the end of the second set it tightened up next to the shoulder blade," said Murray.
"The trainer came out and manipulated my back. He gave it a few good cracks.
"It's a 90 kilo guy lying on top of me so it's not that pleasant."
He added: "The way I finished the match is how I want to play the rest of the way."
Murray will take a 5-0 career record into Monday's match with 36-year-old Karlovic, who has hit an intimidating 136 aces in three rounds so far.
"It will be a very different match from today. Ivo is going to be coming to the net a lot," said Murray.
"He's served very well so my returns will have to be on if I want to get through that one."
Andy Murray (SCO x3) bt Andreas Seppi (ITA x25) 6-2, 6-2, 1-6, 6-1
Marin Cilic (CRO x9) bt John Isner (USA x17) 7-6 (7/4), 6-7 (6/8), 6-4, 6-7 (4/7), 12-10
Viktor Troicki (SRB x22) bt Dustin Brown (GER) 6-4, 7-6 (7/3), 4-6, 6-3
Ivo Karlovic (CRO) bt Jo-Wilfried Tsonga (FRA) 7-6 (7/3), 4-6, 7-6 (7/2), 7-6 (11/9)
Roberto Bautista Agut (ESP x20) bt Nikoloz Basilashvili (GEO) 7-6 (7/4), 6-0, 6-1
Roger Federer (SUI x2) bt Sam Groth (AUS) 6-4, 6-4, 6-7 (5/7), 6-2
Caroline Wozniacki (DEN x5) bt Camila Giorgi (ITA x31) 6-2, 6-2
Garbie Muguruza (ESP x20) bt Angelique Kerber (GER x10) 7-6 (14/12), 1-6, 6-2
Timea Bacsinszky (SUI x15) bt Sabine Lisicki (GER x18) 6-3, 6-2
Monica Niculescu (ROM) bt Kristyna Pliskova (CZE) 6-3, 7-5
Olga Govortsova (BLR) bt Magdalena Rybarikova (SVK) 7-6 (7/4), 6-3
Madison Keys (USA x21) bt Tatjana Malek (GER) 6-4, 6-4