Judd Trump reached the quarter-finals of the Masters for the first time in three years as he beat Stephen Maguire 6-4.
Looking to gain revenge for Maguire's victory over him at the same stage of the 2015 tournament, Trump battled back from losing the opening frame to establish a 4-1 lead.
Scotland's Maguire rallied well to bring things level at 4-4, but Englishman Trump subsequently claimed the next two frames to seal the triumph.
The last eight will see Trump face the winner of Wednesday's match between Neil Robertson and Marco Fu.
Reflecting on the win at London's Alexandra Palace, Trump told worldsnooker.com: "It was a very high quality game.
"I managed to get a good lead, then he played some great stuff to get back to 4-4. In the end I did well to win the last two frames.
"It's hard when you've got a big lead and then someone comes back at you, it puts you under a lot of pressure. It was important for me to make a break in the next frame.
"This venue is only 20 minutes from where I live so I really want to do well this week. I've lost in the first round here for the last two years so it's a relief to get through.
In Monday's other match, Barry Hawkins secure his first ever victory in the competition as he saw off Joe Perry 6-3. Having been 2-0 up, Hawkins found himself 3-2 down to his fellow Englishman before reeling off four straight frames to wrap things up and set up a quarter-final clash with Ireland's Mark Allen.