Matt Farrell knew his brother, Bo Farrell, wouldn't be returning from duty in Afghanistan until February — so the Notre Dame point guard was shocked when his brother appeared on the video board following a game on Dec. 19. But little did he know that Bo was delivering his message from inside the stadium.

WATCH:An unreal moment between two brothers.

Matt Farrell thought his brother was coming home from Afghanistan in February... he was wrong. pic.twitter.com/kp8GVik7Si [1]

— Notre Dame MBB (@NDmbb) December 20, 2016 [2]

In the emotional video, Bo said, "Matty, I've been watching your game from here. For us, home is wherever we're together — and I look forward to being home with you soon." As Matt appeared overcome with emotion, Bo added, "Really, really soon." The video then cut to Bo walking through the stadium to surprise Matt on the court. The moment the two brothers finally embrace is incredibly moving.

After being shared by the official Twitter account for Notre Dame's basketball team, the tear-filled video [3] has since racked up over 20,000 retweets and 40,000 favorites. Check it out above.