Premise: Joan Manel Balcells Fornaguera (born 20 June 1975) is a retired professional tennis player from Spain. He won one ATP Tour singles title in his career and reached the final in Scottsdale in 2002 (losing to Andre Agassi) and the semifinals in 2000 Heineken Open losing to Michael Chang.
Hypothesis: Joan was unable to win more than one ATP Tour singles titles in his career.