Following a semi-final run in 2013 and final finish last year, Ivan Dodig and Marcelo Melo are looking to go one step further as they seek to cap their 2015 campaign in tremendous fashion at the Barclays ATP World Tour Finals.

Runners-up to Bob Bryan and Mike Bryan in the 2014 title match at the season finale, the Croat and the Brazilian are hungry to continue soaring.

"This is our best season," Dodig said. "We had some goals together which we achieved and I'm very happy to see Marcelo beat the Bryans [for No. 1 in the Emirates ATP Doubles Rankings] after many years. This is a tournament we will try to enjoy and finish in the best possible way. We had the experience in the last two years so it's going to be good for us."

In addition to Melo usurping the Bryans as the top individual doubles player in the world, the Croatian-Brazilian tandem are looking to dethrone the American twins as the year-end No. 1 team. Four teams, including Jean-Julien Rojer & Horia Tecau and Jamie Murray & John Peers, are in contention, making this year's battle for the top spot one of the closest in history.

"This is a tournament we play well at," added Melo. "It's the third time we are coming here. We are in great shape after winning Paris. I hope we are going to continue the same way and finish the year as the No. 1 team."

Dodig and Melo claimed their maiden Grand Slam title at Roland Garros and enjoyed further success in the French capital to close out the regular season, taking home the BNP Paribas Masters crown. A title run in Acapulco also helped confirm their place among the elite eight at The O2 in London.

Dodig attributes their strong partnership to possessing different strengths between the lines and developing a bond away from the court.

"We are different players. We have different approaches on the court. In doubles, in my opinion, that's very important. Marcelo is a great player at the net, which helps a lot. I have a lot of other stuff I'm taking from my singles play. If you combine all this, we're a good team. We're great friends first of all."

The tandem find themselves in Group Fleming/McEnroe alongside Rojer/Tecau, Herbert/Mahut and Matkowski/Zimonjic, with play commencing on Monday.