Tennis officials are considering adding third-set tiebreakers at the next Olympics after some marathon matches in London this year.
Also, bronze-medal matches could be eliminated to lighten the loads of players entered in multiple events.
On the sidelines of a European Olympic Committees meeting, ITF president Francesco Ricci Bitti said that the matches this year were "very balanced and very long and that ruins the scheduling somewhat."
For example, Roger Federer beat Juan Martin del Potro 3-6, 7-6 (5), 19-17 in the London semi-finals, and was then soundly beaten by Andy Murray in straight sets in the gold-medal match.
If bronze-medal matches are eliminated, it would mark a return to handing out two bronzes for each of the semi-final losers, as happened at the 1988 Seoul Games.