The 33-year-old felt pain in his Achilles during the interval after picking up a knock in the first half and was withdrawn.
Hungary coach Sandor Egervari has confirmed that Gera is not expected to feature against Holland on Tuesday.
Gera's side were not troubled by his absence as they marched to a convincing 5-0 win with Bolton's Adam Bogdan keeping a clean sheet.
But the Baggies man will be hoping his injury is not too serious after missing much of the last campaign with a cruciate knee ligament problem suffered in November 2011.
The USA will wear their blue away jersey against Jamaica in their World Cup qualifier on Friday night.
Jamaica is in need of a win against the U.S. Get the jersey of the Reggae Boyz.
The adidas Nitrocharge is the most talked about new cleat in years. It was released on May 15 and will take your pitch by storm.
Manchester City will try and win back the Premier League title with this new soccer jersey from Nike!
Support the USA national team with an official 2013 Centennial soccer jersey from Nike. Its Official.
Germany is one of the top teams ever and they will play the US on Sunday.
Neymar's move from Santos to Barcelona is no doubt the biggest summer transfer.
The hoop soccer jersey is classic and cool. The USA hooped jersey is perfect for every fan. Get in the Gear.
England will debut their new away jersey against Brazil at the Maracana Stadium on Sunday. Get in the Gear
The Nike Hypervenom is the latest cleat silo from Nike. It will change your game and is worn by the game's top players.