(SportsNetwork.com) - The Philadelphia 76ers are still searching for their first home win of the season and will host the Boston Celtics Monday night.

The 76ers are 0-12 at Wells Fargo Center this season and opened a three-game homestand with Saturday's 120-115 overtime loss to the Memphis Grizzlies.

Robert Covington scored 24 points and Hollis Thompson added 21 for Philadelphia, which has dropped three in a row and fell to 2-21 on the season. Tony Wroten scored 17 points off the bench and Michael Carter-Williams ended with a triple-double of 16 points, 11 assists and 11 rebounds.

Grizzlies guard Mike Conley tossed in a 3-pointer as time expired to force overtime. Memphis out-played the Sixers in the extra session to escape with the victory.

"That is a very cruel loss," Sixers coach Brett Brown said. "I've just seen the end of the game, there are not many regrets. It's a cruel loss for a bunch of young guys that put themselves in a position to get an incredible win."

Covington has scored 20 or more points in four of his last five games.

Philadelphia will close the homestand Friday versus Charlotte.

The Celtics are winless in their last four road games and have lost three in a row overall, including Friday's 101-95 setback to the New York Knicks.

Jeff Green had 28 points, Tyler Zeller stepped up with 19 and both Evan Turner and Marcus Thornton scored 13 points for Boston, which shot 43.5 percent and committed 18 turnovers for 19 New York points.

"We're a team that needs every basket we can get. Whether that's one person, two or three people, we need to all play well to win," Celtics head coach Brad Stevens said.

Boston is 2-6 on the road and defeated Philadelphia, 101-90, in the City of Brotherly Love on Nov. 19. Brandon Bass scored 23 off the bench and Jared Sullinger added 22 for the Celtics.

Wroten scored 21 points in that one for the Sixers, who won three of four meetings with the Celtics a season ago.