![A second-half 3-pointer from Payton Pritchard had his Celtics teammates on their feet cheering in Sunday's preseaso nwin over the 76ers.](https://bostonglobe-prod.cdn.arcpublishing.com/resizer/xXtHY-B6qWxO8zGX8n2wxEiYVKc=/480x319/filters:focal(1495x10:1505x0)/cloudfront-us-east-1.images.arcpublishing.com/bostonglobe/5KB4HIEF2IBN474DRGKSBHNQIU.jpg)
Payton Pritchard’s contract extension another sign the Celtics are in a hurry to win an NBA title
The Celtics have exhausted their salary cap flexibility for the sake of putting together a team they believe can compete for a championship in the next five years.
Support Real Journalism Subscribe to the Globe for just 99 cents