The 14th seed, bidding to reach the quarter-finals for the second time in his career, went into last night’s final session with a 9-7 lead in their best-of-25 encounter.
Fu won the first three frames of the session to get within one of victory and although McGill pegged him back, the Hong Kong cueman held his nerve to set up a clash with either Ronnie O’Sullivan or Barry Hawkins.
Meanwhile , former champion Mark Williams bounced back from a poor start to lead 10-6 against qualifier Michael Holt.
Holt, who stunned Neil Robertson in the first round, raced into a 4-1 lead, but Williams, despite never hitting top form, clawed his way back to level at 4-4 ahead of the evening’s resumption.
Williams then took six of the next eight to lead 10-6.
Ali Carter will take a two-frame lead into the final session of his second round match against veteran Alan McManus this morning.
Former runner-up Carter edged a long and safety-dominated session for a 9-7 advantage, with McManus in particular appearing upset with the table conditions.
Qualifier Sam Baird finished with a break of 85 to peg back former world champion Mark Selby at 4-4 at the end of the opening session of their second round match.
That match also continues at 10am this morning.
Meanwhile Ronnie O’Sullivan has tipped Kyren Wilson to become snooker’s next superstar.
Wilson won a late-night thriller on Thursday night at the Crucible to reach the second round of the Betfred World Championship.
His heroics in a 10-9 win over Joe Perry had O’Sullivan gripped, and as the match neared its conclusion the five-time world champion tweeted: “Keiren Wilson is going to be the best player in the world one day.”
O’Sullivan, who face Barry Hawkins this weekend, was breaking his silence, having snubbed mandatory media interviews following his own first-round victory in Sheffield, which earned him a warning from World Snooker.
While 40-year-old O’Sullivan is the title favourite, Wilson has half an eye on the trophy too.
He landed the Shanghai Masters title earlier this season, for his first ranking tournament win, and the 24-year-old from Kettering is full of confidence in his ability.
Wilson said: “I want to make memories at the Crucible and you’re only going to do that by winning matches.
“To tick the first one off the list is fantastic and it’s certainly just behind Shanghai.”
Mark Allen awaits Wilson in the last 16, with their match starting tomorrow morning.
Wilson said: “I’m trying not to get too far ahead of myself but it’d be the icing on the cake to lift the world title.”