The NBA announced Monday that the Mavs will play eight-time German champions Alba Berlin at Berlin's O2 arena on Oct. 6.
The Celtics will open the NBA Europe Live tour Oct. 5 in Istanbul against five-time Turkish champ Fenerbahce Ulker Istanbul. Boston will then move to Milan, Italy, to face Italian power EA7 Emporio Armani on Oct. 7.
The NBA says the Mavericks will play an additional game in Spain, with details still to be announced.
The Europe Live series, featuring exhibition games between NBA and Euroleague teams, is in its sixth year.