Marin Cilic defeats Lucas Pouille in straight sets to earn Croatia its second Davis Cup title on Sunday.

Marin Cilic defeats Jo-Wilfried Tsonga in straight sets to earn Croatia a 2-0 lead over France in the Davis Cup final on Friday.

Marin Cilic ends Group Guga Kuerten with a 1-2 record following his straight-sets loss to Novak Djokovic at the Nitto ATP Finals on Friday.

Marin Cilic defeats John Isner in three sets at the Nitto ATP Finals on Wednesday.

Marin Cilic is competing at the Nitto ATP Finals for the fourth time in the past five years.

Marin Cilic earns his second career Nitto ATP Finals match win, beating John Isner on Wednesday.

Marin Cilic has won at least one tour-level trophy in each of the past 11 ATP World Tour seasons.

Marin Cilic is making his fourth appearance at the Nitto ATP Finals.

The eight singles players competing at the Nitto ATP Finals take the Jubilee line on the London Underground from North Greenwich station to Westminster station to attend the Nitto ATP Finals Official Launch presented by Moët & Chandon at London's iconic Houses of Parliament on November 9, 2018 in London, England. The tournament will be played 11-18 November at The O2.

The eight singles players competing at the Nitto ATP Finals take the Jubilee line on the London Underground from North Greenwich station to Westminster station to attend the Nitto ATP Finals Official Launch presented by Moët & Chandon at London's iconic Houses of Parliament on November 9, 2018 in London, England. The tournament will be played 11-18 November at The O2.

The elite eight have arrived in London for the Nitto ATP Finals.

Marin Cilic strikes a backhand on Thursday in an early training session at The O2 ahead of the Nitto ATP Finals.

Marin Cilic beats Grigor Dimitrov in straight sets at the Rolex Paris Masters on Thursday.

Marin Cilic continues to pursue a spot at the Nitto ATP Finals with a victory against Philipp Kohlschreiber in Paris.

Croatia's Marin Cilic advances to the second round of the Swiss Indoors Basel on Monday.

Marin Cilic and Alexander Zverev are both in contention to qualify for the Nitto ATP Finals in London from 11-18 November.

Alexander Zverev and Marin Cilic enjoy decorating lanterns ahead of their opening matches at the 10th edition of the Rolex Shanghai Masters.

Top seed and Nitto ATP Finals contender Marin Cilic has reached the Tokyo semi-finals for the past two years.

World No. 6 Marin Cilic capitalises on early nerves from Frances Tiafoe, making his debut for the United States, in the Davis Cup semi-finals on Friday.

Frances Tiafoe makes his Davis Cup debut for the United States against Marin Cilic of Croatia in the semi-finals on Friday.

Marin Cilic landed 57 winners in his five-set loss to Kei Nishikori at the US Open on Wednesday.

Marin Cilic is aiming to reach his second Grand Slam semi-final of the season at the US Open.

Marin Cilic sends No. 10 seed David Goffin packing in the fourth round of the US Open on Monday.

Marin Cilic, the 2014 US Open champion, comes from two sets down to defeat #NextGenATP Alex de Minaur in five sets.

Marin Cilic records his 30th US Open victory on Tuesday.