PARIS: Tennis´ Grand Slam tournaments will all trial using a first-to-10 tie-break in final sets this year, the four competitions announced on Wednesday.
Until now, the major events all employed different rules on how to end a match which reaches 6-6 in a deciding set.
The Australian Open already uses a first-to-10 breaker, while the US Open has opted for a traditional first-to-seven tie-break at 6-6 for over 50 years.