The on-loan Galatasaray forward said he was pleased for Blackburn and their supporters following the 1-0 win but added that he hopes Arsenal bounce back from then defeat.
"I was here as a schoolboy, so my connections are to Arsenal, I am an Arsenal fan. I love Arsenal," PA quotes him as saying.
"I will be supporting them on Tuesday against Bayern Munich. I will have my Arsenal top on, and I will be there in front of the TV, but you know this is work.
"This is what I get paid to do and it's nice for the Blackburn fans, to give back because they have had a rough time, everybody knows what's gone on so it is nice for them to be able to celebrate."
Blackburn were handed a quarter-final tie against Millwall after defeating Arsenal.