There are two stars who will need no introduction when the Boston Celtics and Dallas Mavericks meet in Game 1 of the NBA Finals on Thursday night.

Dallas guard Kyrie Irving and Boston big man Kristaps Porzingis find themselves pitted against their former teams, with Irving¡¯s breakup with the Celtics much messier than Porzingis¡¯ departure from the Mavericks.

Irving spent two seasons in Boston and told fans that he planned on re-signing with the Celtics following the 2018-19 campaign.