"We celebrated on Sunday, this is Saturday. It's six days," he said. "If us athletes can't recover in six days we've got no chance for everyone. We had to take that moment on Sunday, because if we're celebrating now on a downer it won't feel right.
"The moment was right, the club, the players and staff made that decision. Let's not blame that. It's down to us as players who played that 97 minutes."
Walker said of their Premier League title parade: "Four in a row has never been done until we did it. It's right that we celebrate with our fans.
"Would we have wanted it off the back of this result - of course not. I'd have liked to make an extra trophy. But hopefully for what we've achieved this year coming off the back of the treble, hopefully they can be satisfied with that and they can show their support tomorrow. I know we will show our appreciation for their support over the season."