Richardson said this was the first time he ever had his knee drained.
"It felt good after getting all that out there, getting the swelling down," he said.
Sixers coach Doug Collins said before the game that he left the decision up to Richardson to play.
"If he feels he can go, I don't want him to feel like we don't want him out there to play," Collins said. "I learned a long time ago from Michael Jordan, when guys want to play and you hold them out, eventually they won't want to play."
Holiday's all-star chances
Collins said that point guard Jrue Holiday is playing at an all-star level, but when asked his thoughts on Holiday's chances, the coach was candid.
Collins stated that the Sixers' record, which was 16-23 entering Friday night, would work against Holiday.
"If we were winning and [in] a better position, would his chances be better? Absolutely," Collins said.
The seven Eastern Conference reserves will be chosen by the coaches, who must select two guards, three frontcourt players, and two other players.
The votes must be submitted by noon on Wednesday and will be announced the next night. Holiday entered Friday averaging 19 points and 8.8 assists.
Playing through injury
Raptors point guard Kyle Lowry, who starred at Cardinal Dougherty and Villanova, wasn't going to miss a chance to compete in his hometown, despite playing on a left ankle that he said was less than 100 percent. That's why he had the ankle in a bucket of ice following a morning shootaround.
Lowry hurt the ankle in Tuesday's 113-106 loss at Brooklyn.
He returned in the game and scored 19 points in the fourth quarter and then added 26 in Wednesday's 107-105 home overtime loss to Chicago.
"I didn't know I could play against Chicago until after I went in the layup line," Lowry said. "I felt I could go and gave it all I had."