has now faced 15 penalties in his Gunners career and failed to save ANY of them, even diving the wrong way on 12 occasions.
Gunners boss Arsene Wenger signed Cech
from Chelsea in 2015 to try to add the finishing touches to a potentially title-winning team.
Boro boss Karanka said: "It is great to come to the Emirates and for the best Arsenal player to be Petr Cech
made his senior international debut in 2002 and went on to represent the Czech Republic at Euro 2004 - where they finished third - and the 2006 World Cup before captaining the side at Euro 2008.
, set to become the country's most-capped player, will anchor a largely untested lineup that will look to build on their qualifying successes and avoid an early exit by at least eclipsing Turkey and Croatia in Group D.
One of the more fascinating statistics going into this contest was the fact that over three two-legged Champions League ties between Chelsea and Barcelona, Lionel Messi had never scored past Cech
felt he needed to make the move having being displaced as Chelsea's number one, but still called it the "hardest decision" to call time on his lengthy stay in west London.
5m) capture of Cech
represents Arsenal's first signing of the summer, though Chelsea boss Jose Mourinho had been hugely reluctant to allow the veteran goalkeeper to join a rival.
, under contract until 2016, is unsettled having lost his status as Chelsea No1 to Thibaut Courtois.
Nevertheless, the Portuguese mentor still wants Cech
on his bench, but admitted that a player of the latter's caliber will definitely be discontented.
, 32, has been stuck on the bench since Thibaut Courtois returned to west London.
And with Thibaut Courtois almost certain to return to Chelsea this summer as first-choice keeper, Cech
is likely to be on his way, after an outstanding decade at Stamford Bridge.