—For a good three hours, Cilic looked like he was going to be the hero of the weekend, and of the Davis Cup season. He had beaten Federico Delbonis in the tie’s first rubber, and teamed with Ivan Dodig to win the doubles for the third straight time in 2016. On Sunday, with a chance to clinch Croatia’s second Cup, he came out on fire against Del Potro. Cilic broke Delpo with a topspin lob in the second game, and he was the much more energetic player in the early going. While Delpo sliced his backhand, Cilic controlled the rallies with his forehands, and came up with big serves when he needed them. At 5-2 in the first-set tiebreaker, Cilic hit a forehand crosscourt pass at full stretch. It’s the type of inspired, ultra-athletic shot you don’t see often from this meat-and-potatoes player.
—For the most part, Cilic played the type of match that many of us have been waiting 10 years to see from him. He was positive, proactive and clutch, and three times he brought Croatia to within two games of the Cup. But Delpo won’t let him cross the finish line.
The big Argentine is a slow starter. His game is the tennis equivalent of a tank; it takes a while to maneuver into position, but when it does, you probably want to get out of its path. In the semifinals, with Argentina down 2-1 on the road in Glasgow, Del Potro came back from two sets to one down to beat Murray, a man who wouldn’t lose another match all season. In Zagreb, again on the road and again with Argentina facing elimination, Delpo came back from two sets to love down.
An expert showman, he begins his self-resurrection in suitably dramatic style. With Cilic serving at 5-6 in the third, Delpo reaches set point. Cilic hits a strong first serve and comes in behind a short but finely measured backhand. Del Potro, with a sudden surge of energy, flips a pass crosscourt and, without breaking stride, moves in for a forehand volley kill shot on the next ball. With one fell swoop, he’s back in the match, and the Argentine crowd has reason to hope.
—Yet the match still appears to be Cilic’s in the fourth set. Serving at 3-4, he begins to play some of his best tennis, and it looks for a split second as if he’s going to sprint away with a career-making victory. Serving at 3-4, Cilic clubs a forehand winner and holds at love. At 4-4, he goes down 40-0, but plays some of the best tennis of the day to fight back to deuce.
But then, what seems to be a break for Cilic quickly turns into a match-changing disaster for him. We don’t see it in this clip, but Del Potro is assessed a time violation at deuce, and has his first serve taken away. Incensed, he wins the next point with a big second serve. Just like that, the momentum shifts to Delpo’s side. He holds and breaks to win the fourth. While Cilic hangs on gamely in the fifth, Del Potro, like that aforementioned tank, eventually rolls over him with his superior power. When the chips are down, it seems, the best thing that can happen to a player is to get a time violation. It lit a fire in Delpo that never went out.