But in the end I am really happy to win today.
Argentina are heaping the pressure on Belgium and their greatest asset David Goffin ahead of their Davis Cup World Group semi-final starting Friday.
Captain Johan Van Hercke’s side ousted titleholders Switzerland, without stars Roger Federer and Stan Wawrinka in the first round, and then Canada, who were missing Milos Raonic and Vasek Pospisil in the quarter-finals.
The victor will play either Britain or Australia in the final.
epa04937344 Leonardo Mayer of Argentina returns a ball during a Davis Cup World Group match between Belgium and Argentina, in Brussels, Belgium, 18 September 2015.
Delbonis saved the first match point before Darcis sealed the match with a smash and fell on his back, with his teammates rushing to him as celebrations started.
Steve Darcis overcame Federico Delbonis 6-4, 2-6, 7-5, 7-6(3) in the fifth rubber to clinch the tie.
At Tashkent, Steve Johnson and Sam Querrey held their serve throughout a 6-3, 6-2, 6-2 win over Uzbekistan’s Denis Istomin and Farrukh Dustov, wrapping up the match in just over 90 minutes.
The world number three sat out the doubles against the United States in Britain’s previous Emirates Arena contest, but that was after Ward put the hosts 2-0 up.
On the other hand, there was so little difference against Belgium – who have reached the final without a top 10 player – that if the tie had been at home on a different surface, Argentina might have won.
The Belgian was broken again to close the set, as the Argentine evened the match at a set each with a 6-2 win.
Adam Pavlasek and Radek Stepanek had defeated favourites Rohan Bopanna and Leander Paes 7-5, 6-2, 6-2 on Saturday to hand the Czechs an advantage heading into the final day.
This year, with Juan Martin del Potro out due to injury and its former Davis Cup hero David Nalbandian long retired, the team has mounted an improbable run.