Marco in for a long grind.
Fu had already been involved in the longest frame of the tournament ( 59 minutes ( during a marathon quarter-final triumph over Ken Doherty.
That looks like paling into insignificance against 2002 champion Ebdon on the evidence of an opening eight-frame session spanning three hours, 45 minutes and including another 50-minute-plus frame.
The duo went into today's second session locked at 4-4 ( but Ebdon is renowned for grinding down opponents and play visibly slowed during the second batch of four frames which occupied nearly two and a half hours.
Meanwhile, Ronnie O'Sullivan showed few signs of his self-confessed lack of belief as he led 5-3 against Graeme Dott in the other semi-final ( a repeat of their meeting in the 2004 final.
Dott put together a fine 121 break in the opener and finished the session with a run of 70 but in between O'Sullivan dominated proceedings.