Arsenal midfielder Declan Rice says he "didn't like" the reaction online from some fans about the signing of Noni Madueke from Chelsea, but backed the winger to "shock" with his talent.
Madueke, 23, joined for an initial £48.5m last week as Arsenal look to increase their attacking options.
However, the signing caused a backlash, with the hashtag #NoToMadueke posted across social media, and a petition started which had more than 5,000 signatures.
"I know how driven he is," Rice said after Arsenal's 1-0 pre-season win over AC Milan in Singapore.
"I've spoken to him and you're going to see what he's about this season. He wants to prove and show everyone what he really can do.
"He's hungry, he wants to play for Arsenal and that's the type of players we want. It's so positive.
"He's going to shock a lot of people and I can't wait for him to come.
"People have been speaking internally - the players, the staff. We know the player that we're getting and we're really looking forward to having him at our club. It's going to be really exciting."
