Bianca Andreescu talks tennis, Tokyo 2020, and making a breakthrough

Canadian tennis player Bianca Andreescu shocked the world when she beat four-time Olympic champion Serena Williams in the final of the 2019 US Open. Now, she's firmly established herself as one of the world's most exciting tennis players. She's visualised becoming Olympic champion so we caught up with her ahead of a hectic summer of the French Open, Wimbledon, and the Olympic Games.