Susan Egelstaff faces the prospect of a tough second-round match at the Yonex BWF World Championships at Wembley.
The 28-year-old Scot faces Canada's Michelle Li in the first round, with Egelstaff coming out on top in their only previous encounter.
However, the Glaswegian would then meet the 14th seed, Hong Kong's Yip Pui Yin, in the second round.
"It's a tough draw, but you expect that in a World Championships," said Egelstaff.
"I will need to play my best, but I've been playing well recently and everything is going well in training, so I'm feeling good and looking forward to it."
Fellow Scot Imogen Bankier and partner Chris Adcock also face Canadian opposition in the mixed doubles, where they meet Toby Ng and Grace Gao.
Bankier and Adcock were the victors when they met previously in last year's Irish International and victory would see them paired with number eight seeds Songphon Anugritayawon and Kunchala Voravichitchaikul of Thailand.
Edinburgh's Martin Campbell and Troon's Angus Gilmour will play Australia's Ross Smith and Glenn Warfe in the men's doubles, while Alistair Casey faces English wild card Toby Penty in the men's singles.