Tickets for Games 3 and 4 of the Knicks-Celtics first-round series at Madison Square Garden go on sale at 10 a.m. Friday.

Game 3 is scheduled for Friday, April 22, at 7 p.m. and Game 4 is April 24 at 3:30 p.m.

Tickets may be purchased by going to or with Ticketmaster by phone at (866) 858-0008.

A maximum of four tickets per person per round may be purchased.