The Celtics held onto their half-game lead for No. 1 in the Eastern Conference Sunday, but have a tough back-to-back this week. Jae Crowder was scheduled to have an MRI on his elbow after leaving Sunday's game in New York. 

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Please watch: "FULL KYRIE IRVING and GORDON HAYWARD CELTICS Press Conference"
https://www.youtube.com/watch?v=f7FoDj4-Nzw
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