article: Saracens have announced that Argentina centre Marcelo Bosch has signed a contract extension at Allianz Park. Bosch, 31, was the hero of Saracens' European Champions Cup quarter-final victory over Racing Metro 11 days ago, booting a penalty with the game's final kick to secure a 12-11 success in Paris. The 33 times-capped international joined Saracens from Biarritz in 2013. Marcelo Bosch kicks a last-minute penalty to secure victory before celebrating with his Saracens teammates . His deal follows new contracts announced earlier this week for locks George Kruis and Maro Itoje. Saracens rugby director Mark McCall said: 'Marcelo has worked incredibly hard since he arrived at the club back in October 2013. 'Since then, he has made huge improvements in his game and is constantly looking to get better as a player. 'What has pleased us most about Marcelo is that he has rediscovered his love for the game. His hunger and determination to improve is second to none.' The Argentinian smiles in training earlier this week ahead of the Champions Cup semi-final .
highlights: Argentina international Marcelo Bosch joined Saracens in October 2013 .
  Bosch signs contract extension ahead of Champions Cup semi-finals .
  Bosch's last-minute penalty at Racing Metro sent Sarries through .
prediction: Saracens 
   Argentina centre Marcelo Bosch has signed a contract extension at Allianz Park 
   , 31, was the hero of Saracens 
   European 
   quarter - 
   victory 
   a penalty with 
   to 
   in 
   33 
   international joined 
   from 
   in 2013 
   . 
   deal 
   for 
   George Kruis and Maro Itoje 
   The Argentinian 
   the Champions Cup semi - final.