Swiatek - Halep, Gaston - Wawrinka, Sonego Djokovic ... Tennis Majors has drawn up a list of the 10 biggest "upsets" of 2020.
Novak Djokovic started 2020 with a bang and finished with the year-end No 1 ranking, but the Serb had his share of struggles and turmoil as he fell short in his quest to add even more major titles to his name.