Oh my.... I"ll never forget his Middlesbrough goal to start. Brought us back to Europe's premier competition.
But even without his goals he has always done what Klopp wanted from him impeccably. Remember how Henderson just seemed to change after he got the role he asked Klopp for? Wijnaldum could excel in other roles for Liverpool, but he's been asked to play one of the the thankless ones and done a very hard job very well non stop for 5 years. As Klopp said, the team was built on the traits he has in abundance.
And I'd say much of the same for Firmino. I'll be much more upset when he goes. I really don't think Salah, Mane, or TAA are as highly regarded if it weren't for them. They have been the knitters, the platform, the unselfish team first thrust needed to win the lot. I just don't think any players in the first 11ish of the European, World and finally England Champion Reds wasn't a benefit to us on the pitch.