The 22-year-old will join up with the Canada national squad in Orlando for a two-week training camp ahead of the prestigious SheBelieves Cup.
The tournament will feature Canada alongside reigning world champions USA and Brazil and Argentina as the squads prepare for the Olympics in Tokyo this summer.
It is Foster’s first call-up to the senior Canada squad having played in two World Cups at U20 level. A phone call put her on alert before she received an official letter via email to break the good news.
Foster told Liverpoolfc.com: “When I got the phone call it was an absolutely surreal moment.