Pablo Carreño Busta is a Spanish inactive professional tennis player. He has been ranked as high as world No. 10 by the ATP, which he first achieved on 11 September 2017. He also reached a best doubles ranking of No. 16 on 17 July 2017. He has won seven singles titles, including a Masters 1000 title at the Canadian Open, and four doubles titles on the ATP Tour. Representing Spain, Carreño Busta has won an Olympic bronze medal in men's singles at the 2020 Tokyo Olympics and was a member of the Spanish team that won the 2019 Davis Cup.

The Canadian Open is an annual professional tennis tournament held in Ontario and Quebec, Canada. It is played on outdoor hard courts. The men's competition is an ATP Masters 1000 event on the ATP Tour, and the women's competition is a WTA 1000 event on the WTA Tour. It is the second-oldest active tennis tournament after Wimbledon.