June 23 (Reuters) - Christine Sinclair, the all-time international goal-scoring record holder, was named to her fourth Olympic squad on Wednesday and will headline a Canadian roster at the Tokyo Games that features a mix of veterans and youth. Led by Sinclair, whose 186 goals for her country are the most by a female or male soccer player worldwide, Canada won medals at both the 2012 and 2016 Olympics and was the only nation to make the podium in both competitions. "I am looking forward to doing whatever I can to help take this team back to the podium and make history again," said Canadian captain Sinclair. "Our team is in a good spot, we are excited, we are hungry and we are ready to go." The 18-player roster features 12 members of the squad that competed at the 2016 Rio Games while a quintet including Vanessa Gilles, Jayde Riviere, Julia Grosso, Adriana Leon, and Evelyne Viens will be making their Olympic debuts. Goalkeeper Kailen Sheridan travelled to Rio in 2016 as an alternate. Canada will kick off their Tokyo 2020 journey when they face Japan on July 21 and continue Group E play against Chile on July 24 and Britain on July 27.