4-Time All-Star Al Horford Joins Celtics
It's a landmark signing for Celtics and for Boston - The Boston Globe
Celtics Hit Another Dead End, With No Clear Path Forward This Time - The New York Times
Al Horford, Celtics Agree to 2-Year, $20M Contract Extension, News, Scores, Highlights, Stats, and Rumors
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Al Horford will be missed by the Celtics
Al Horford, Celtics agree to $113 million contract, per report
Celtics send Kemba Walker, 16th pick to Thunder for Horford, Local Sports
White's putback as time expires lifts Celtics past Heat, forces Game 7 in East finals
Horford, Tatum help Celtics even series with 116-108 victory - Seattle Sports
Al Horford's Message to Fans After Celtics' Historically Bad Outing
Celtics notebook: Al Horford credits health, Kyrie Irving for recent surge – Boston Herald
Al Horford changes everything for the Celtics