Speaking on the talkSPORT Breakfast Show, Parlour said: "They're looking at Thomas Partey, he might be on his way out, so they do need a little bit of strengthening in that midfield. It [Merino transfer] gives Declan Rice a little bit more license to go forward if you've got another holding midfielder in there. I know he plays like that for England in that holding role, but I like to see Declan get forward. And as I've said before, I'm a little bit of an old-fashioned midfielder, I like the box-to-box players. It's just using your common sense as a midfielder, if someone runs past you that is playing alongside you and gets forward, you just fill in for him, and vice versa, it's very, very straightforward."
Parlour continued to praise Merino, saying, "He's a top player, performing well for both Spain and Real Sociedad. At 28, he's at an optimal age, making this a good investment for Arsenal. With £25 million, it's a solid deal, and their good relationship with Real Sociedad, especially with [Kieran] Tierney's loan, facilitates this transfer."