Just in time for holiday shopping, the Boston Celtics  have released additional tickets for the remaining home games. They will go on sale this Friday at 11am. Those interested are encouraged to order early. Tickets can be purchased through Ticketmaster, online at www.Celtics.com, by phone at 1-800-4NBA-TIX, or by visiting the TD BankNorth Garden  Box Office (open 11am-7pm, Monday-Sunday). Individual tickets start at $10 in the Rite-Aid Pharmacy Family Section and several ticket packages will be made available. A limited number of group tickets for 20+ people are also currently on sale. Call 888-4CELTIX for more information.