He said that experience had taught him how to handle "an incredibly good baseliner" like Nalbandian.
Fifth seed Gonzalez next faces Andy Roddick atthe Vienna Open.
With five weeks to go before the season-ending Masters Cup, six spots in the eight man field remain up for grabs.
Both players were taken to three sets by lesser-fancied opponents in the semi-finals.
The Thai was pushed to a first-set tiebreaker before cruising past the Frenchman in the second round of the RCA Championships.
David Nalbandian lost 6-1, 6-2 to Italian Davide Sanguinetti in the first round of Toronto Masters.
Holders Croatia had to be content with a win and a loss from the opening day's two singles rubbers in the Davis Cup.
Sebastien Grosjean upset sixth seed Guillermo Coria while Tommy Robredo beat James Blake
The Argentine was stretched to five sets by Thai qualifier Danai Udomchoke.
The German became the first player to enter the final with a 6-4, 6-4 victory over Argentina's Guillermo Coria.
Mario Ancic beat Slovakia's Michal Mertinak to claim a 3-2 victory for Croatia in the Davis Cup final.
Leander Paes and Nenad Zimonjic received a bye in the first round and would meet Nicolas Kiefer and Alexander Waske
Andre Agassi beat Spain's Tommy Robredo while Marat Safin knocked out Peruvian Luis Horna at the Madrid Masters.
The fifth seeds were shocked by Germany's unseeded pair of Nicolas Kiefer and Rainer Schuettler 6-3, 6-3 in the semi-finals.
Leander Paes and his Spanish partner Tommy Robredo scored a straight set victory over Ivan Ljubicic and R Soderling to storm into the doubles semi-finals of the Euro 2,270,000 Hamburg ATP Masters Series on Friday. The unseeded Indo-Spanish pair won 6-2, 7-6 (3) to set up a semi-final clash with the second seeded duo of Canadian D Nestor and Nenad Zimonjic of Serbia, who downed fifth seeded combine of S Aspelin (Sweden) and James Knowles (Austria) 6-2 5-7, 10-8.
The defending champion beat Dominik Hrbaty of Slovakia in the quarter-finals of the RCA Tennis Championships.
Defending champion David Nalbandian beat top seed Andy Roddick 7-5 7-5 in the Swiss Indoors semi-finals.
The British ace was beaten by defending champion David Nalbandian in the quarter-finals of the Swiss Indoors.
Playing his first match after a three-month injury layoff, a patched-up Tim Henman was humbled 6-4 6-2 by Croatian Ivan Ljubicic in the first round of the World Indoor Tournament on Tuesday.
Goran Ivanisevic and Ivan Ljubicic rallied from two sets down to beat James Blake and Mardy Fish in the doubles, in the Davis Cup first-round tie.\n\n
India's tryst with fourth-place Olympic heartbreaks
World No 2 Andy Murray's three-point contribution to Britain's defeat of Belgium in the Davis Cup final concluded one of the most remarkable years ever achieved in the competition by an individual player. Below are the key facts:
Roger Federer will miss the Australian Open in January and is unlikely to return to competition until mid-2022 as he recovers from multiple knee surgeries, the former world number one told Swiss media.
The ATP Tour got on board and last month fans were able to bid for private sessions with celebrated tennis coaches on-site during tournaments in 2021.
Novak Djokovic deserves a "little star" next to his name for a spectacular 2015 season that saw him win three grand slams among his 11 titles but the men's game is not simply a matter of the Serb versus the rest, Roger Federer said.
Croatia's Mirjana Lucic-Baroni, who made the third round of the 1997 US Open also at 15, was the previous youngest player to advance to that stage of a grand slam.
Stanislas Wawrinka and his wondrous one-handed backhand managed to pull off a feat no man outside tennis's Big Four had achieved in the past 40 Grand Slams -- to win two major titles
Benoit Paire made a remarkable Davis Cup debut for France, outplaying Pablo Carreno-Busta 7-5, 6-1, 6-0 in the opening rubber of the World Group semi-final tie against Spain at the Stade Pierre-Mauroy on Friday.
Leander Paes aspires to win not only a second Olympics medal but also obliterate the Ramanathan Krishnan's Davis Cup record of most singles win for India.