France levelled their Davis Cup World Group quarter-final tie against Argentina on Sunday after Jo-Wilfried Tsonga dismantled Juan Monaco 6-3, 6-3, 6-0 in 1hr 42mins to force a deciding rubber.
The French number one also won his opening singles' match on Friday and a place in the semi-finals will now be decided in the final match between world number 71 Carlos Berlocq and 13th ranked Frenchman Gilles Simon.
David Nalbandian and Horacio Zeballos came from behind to win Saturday's doubles which gave the hosts the upper hand going into the final day.
French duo Julien Benneteau and Michael Llodra took the first set but Nalbandian and Zeballos fought back to clinch the match 3-6, 7-6 (7/3), 7-5, 6-3.
The winners will face defending champions Czech Republic after they eliminated Kazakhstan earlier in the day.
Canada lead Italy 2-1 while Serbia hold the same advantage over the USA in the remaining last eight matchups.