Cavs have heard the doubts. Jarrett Allen wants to end them

CLEVELAND — Jarrett Allen knows the Cavaliers have earned some respect. He also knows they haven’t earned all of it. “I feel like [the city] believes in us but part of them has doubt,” Allen said Monday at media day. “Everyone wants to break the doubt. I want to break the doubt. The team wants to break the doubt. And we want to do it for the city.” The Cavs reached the Eastern Conference finals last season after winning two Game 7s. That’s progress. Getting swept by the Knicks once they arrived was a reminder that progress and a championship…