For eight seasons the sound of “Coooop” filled the Coliseum and SoFi Stadium, fans embracing the humble greatness of Cooper Kupp as he ascended from anonymity to become the new Rams’ first real homegrown star.

They can be especially difficult in the NFL, where the rare fairytale — player walks into the sunset of retirement after a championship, on his terms and with his preferred team — happens every so often,