Tennis doubles world no. 1 Mike and Bob Bryan are added to the Heineken Open field for the next month's tournament in Auckland. The Bryan brothers who have a long list of achievements with more than 100 career titles, seven Grand Slam mixed doubles titles, 16 Grand Slam doubles titles and four season-ending championships titles are confirmed to join the event.

Since 2003, the American brothers, who are also identical twins have been the season-ending world no. 1, including the past five years on the bounce. To add to their already impressive record, no other player has won more tournaments, more matches, more games and held the world no. 1 ranking longer than they have.

In 2014, the Bryan brothers continued their stellar performances in the tennis court as they bagged a total of 10 titles, which includes six at the master's level. They also managed to reach the finals on three more occasions. In the past 10 years, the brothers have won at least one Grand Slam title every year. Apart from doing well in the tennis court, the Bryan brothers recently took their talents into a charitable twist as they got a 12-year-old cancer survivor boy to play golf.

"This really is the icing on the cake for us," Karl Budge, Heineken Open tournament director said. "I am not sure we will see this quality of field again in New Zealand for some time, to have seven top-twenty players and by far the best doubles team of all time in the one year really is amazing." Budge added that given the strength of their fields this year, many larger tournaments around the world will envy them.

The 2015 Heineken Open in Auckland will offer an international line-up on January 12. The Bryan brothers will be joined by the world no. 1 in women's tennis doubles Sara Errani and Roberta Vinci at the ASB Classic. John Isner is also expected to join and defend his title in the singles draw. Last year, Marcelo Melo of Brazil and Julian Knowle of Austria won the double's tournament.

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