Bale has not started for Real for more than six weeks but coach Zinedine Zidane said he was ready to include him in the starting line-up against PSG, who routed his side 3-0 when they met in Paris in September
Real Madrid stay in touch with leaders Barcelona, who also have 28 points after 13 games but top the standings due to their superior goal difference.
LaLiga: Real Madrid coach Zinedine Zidane defends Gareth Bale, says Welsh star can become 'decisive player again'
Bale danced with a flag reading ‘Wales. Golf. Madrid. In that order’ after Wales sealed qualification for their second consecutive European Championships earlier this week
UEFA Euro 2020 Qualifiers: Aaron Ramsey's brace against Hungary secures qualification for Wales; Germany, Netherlands clinch big wins
Aaron Ramsey scored twice — the first goal set up by a cross from Bale — as Wales beat Hungary 2-0 in a winner-takes-all match in Cardiff on Tuesday.
Bale said he wasn't sure he would play the whole of both matches but defended his return to action in time for the Wales matches.
La Liga: Zinedine Zidane unfazed by injured Gareth Bale's Wales call-up, says winger 'not ready to play'
Bale enjoyed an encouraging start to the season and Zidane has been noticeably more positive in recent weeks about the Welsh winger's future
UEFA Euro 2020 Qualifiers: Gareth Bale included in Wales squad for crucial clashes against Hungary, Azerbaijan
Gareth Bale, who is struggling with a calf problem, has been included by Ryan Giggs in the Wales squad for their must-win final two Euro 2020 qualifiers against Azerbaijan and Hungary
LaLiga: Zinedine Zidane insists Gareth Bale never speaks about leaving Real Madrid, says Welshman had permission to fly to London
Zinedine Zidane insists Gareth Bale was given permission by Real Madrid to travel to London on Monday, and claims the Welshman never talks about leaving the club.
UEFA Champions League: Zinedine Zidane shelves LaLiga intentions as Real Madrid shift focus to Europe
Real Madrid sit bottom of the group, with just one point from their opening two games and the prospect of failing to make the knock-out stages for the first time in the Champions League
LaLiga: Real Madrid's Luka Modric, Gareth Bale doubtful for upcoming El Clasico after players skip training
Real Madrid face an anxious wait to see if Luka Modric and Gareth Bale will be fit for next week's Clasico against Barcelona after both players missed training on Tuesday.
Euro 2020 qualifiers: Poland, Russia secure places as Germany, Netherlands boost hopes of reaching finals
Poland and Russia secured their places at Euro 2020 on Sunday with victories over North Macedonia and Cyprus respectively, while Germany and the Netherlands boosted their hopes of reaching the finals.
Euro 2020 Qualifiers: Wales star Gareth Bale relieved after getting away with rash tackle on Slovakia defender Milan Skriniar
Wales have failed to win in five previous encounters with Croatia and Gareth Bale would love to end that run against his Real team-mate Luka Modric
Euro 2020 Qualifiers: Wales forward Gareth Bale insists he is playing with 'anger' despite uncertain future at Real Madrid
Gareth Bale was involved in a tense stand-off with coach Zinedine Zidane in the off-season, with the Frenchman stating he was keen for Bale to leave, although a reported move to Chinese club Jiangsu Suning in July was scrapped.
LaLiga: Eden Hazard believes he's just 'one goal, one pass or one good match' away from kick-starting Real Madrid career
After a slow start to his Real Madrid stint, Eden Hazard said, "When I start scoring, being decisive, having good matches, it will all come together. That's what I'm missing, one good match, one goal, one pass, something to start my season."
Real Madrid continue to top the LaLiga standings and are the only side in the first division to remain unbeaten.
LaLiga: Real Madrid manager Zinedine Zidane unfazed by criticism aimed at him despite club's fluctuating form
Not for the first time this season, Zidane singled out Gareth Bale for praise on Sunday after the Welshman continued his reintegration at the club with another tenacious display.
LaLiga: Wales international Gareth Bale admits he is feeling 'stronger than ever' after committing to Real Madrid
Wales captain Bale looked set for a big-money move to China in the summer transfer window only for the deal to collapse at the last minute.
Gareth Bale's brace against Villareal to Union Berlin's reality check to Borussia Dortmund, five talking points from European football
From Atletico Madrid challenging getting off to a dream start in La Liga to Matthijs De Ligt's nightmarish debut for Juventus, here are the five talking points from European football
LaLiga: Zinedine Zidane happy with Real Madrid squad, insists relationship with club president Florentino Perez is strong
Zinedine Zidane insists his relationship with Real Madrid president Florentino Perez is strong and he is happy with his squad ahead of the transfer window closing.
LaLiga: Real Madrid boss Zinedine Zidane says he is happy with squad as end of transfer season nears
Zidane also said that his relationship with the club's president Florentino Perez is strong, also saying that the players he has are the best