Harry and Johnny McCracken set aside brotherly love for almost three hours yesterday as they slugged it out in a marathon battle at the Ulster Junior Hardcourt Championship at Windsor.
The older of the Bangor boys, Harry (15), eventually prevailed but only after his sibling, who is two years younger, had staged a memorable fightback after losing the first set to take the Under 16 first round match to the wire.
Harry will now meet second seed Peter Galt in the quarter-finals after his hard-fought 7-5, 6-7, 7-6 victory which was watched anxiously by mum Shirley and dad Michael.
Earlier in the day Galt progressed with a 6-1, 6-1 win over Brett Eastwood.
Harry Ellesmere, who had been seeded to win the title, has unfortunately been forced to withdraw due to a shoulder injury.
His scheduled opponent Ben Doherty has therefore been awarded a walkover into the last eight.
Ellesmere won a maiden Irish Junior Championship title at the weekend and was a hot tip to add the Windsor U-16 trophy to his collection.
His enforced absence could open the door for Dylan Leeman, who had a busy but successful day at the office as he opened with wins in both the U-14 and U-16 events.
The 14-year-old, who won the mixed doubles title at the Irish Junior Championship at the weekend, won the first set against Sean O'Baoill in the U-16 event easily but he then trailed 4-1 in the second.
However, he regained his composure to take the match on a 6-0, 7-5 scoreline and set up a meeting with Matthew Saunders in the quarter-finals.
Irish international Leeman earlier had a relatively straightforward 6-1, 6-1 win over Windsor's Toby Moore as he began his campaign in the U-14 category which he is seeded to win.
Leeman will now face Mackenzie Connor, who had a 7-6, 6-2 success over Tom Warde.