Peter Bothwell staged a stunning comeback at the $15,000 tournament in Nottingham yesterday to book his place in the quarter-finals and secure a valuable world ranking point in the process.
The Hillsborough man defeated Croatian Fran Zgombic 4-6 6-4 6-3 to set up a meeting with England's Finn Boss in the last eight.
Bothwell trailed 3-0 in the second set after losing the first and looked sure to make his exit but he dug deep to take the match into a decider, which he won comfortably.
The 21-year-old said: "Basically, I had lots of chances in the first set but I didn't convert them. When I went 3-0 down, I just didn't panic, I just thought, 'Stay in the match and see what happens'.
"I'm playing well in what are tough conditions with it being a bit wet, windy and very cold but mentally you have to be on the money and that's what got me through."
Bothwell then partnered England's Luke Johnson into the semi-finals of the doubles event with a 2-6 6-4 (10-3) win over Australian pair Alex Babanie and Jeremy Beale.
His younger brother Sam, along with Russian Dimitry Voronin, is also through to the semis of the doubles at a $15k tournament in Tunisia after they beat the third-seeded French pair of Gabriel Peth and Francois Arthur Vibert 6-3 6-1.