London - Arsene Wenger believes Olivier Giroud has transformed as a player during his time at Arsenal, as the French striker scored twice at the Emirates to beat Middlesbrough 2-0 and send the FA Cup holders into the quarter-finals.
Giroud hit two goals in two minutes just before the half-hour, with Wenger especially pleased with the manner of the goals.
The first, after 27 minutes, came at the end of a flowing move than involved every player in the Arsenal starting XI. The second, on 29 minutes, involved a piece of quick thinking as Giroud reacted first to Alexis Sanchez's rapidly taken corner.