The young striker made his 13th appearance and his second start of the campaign in Thursday night’s Europa League Round of 16, first leg against Benfica.
Harry forced the foul that handed Christian Eriksen the chance curl home another free-kick to make it 2-1 but the Portuguese side eventually ran out 3-1 winners.
We make an immediate return to the Lane for what is always an memorable occasion against the Gunners and a key fixture in the Premier League.
“There is no better game to get up for and to try and win,” said Harry. “We’ll go all out to win this game. It will be tough but we’ve the capability to do it.
“We’ll have to work hard as a team and try to get the result.”
Harry was delighted to get the nod against Benfica. “You want to play in these games on the big stage in front of a packed stadium,” he added. “It was good to play a part in the goal by getting the free-kick, but it was a disappointing result. Now we have to bounce back on Sunday.”