Now that Tom Brady's four-game suspension has been reinstated, you probably won't see Bill Belichick smiling out in public over the next few months.

Brady's suspension has probably ruined Belichick's offseason, which is too bad because he seemed to be enjoying himself recently.

Take Sunday night for instance: The Patriots coach and Rob Gronkowski decided to attend the Celtics playoff game, where they definitely seemed to be having a great time. 

Gronk, Belichick, Patriots owner Robert Kraft and LeGarrette Blount were all on hand to see the Celtics knock off the Hawks 104-95 in Game 4 of an NBA playoff series that's now tied 2-2. 

Of course, it was a given that the Celtics were going to win after Gronk showed up. 

The crowd in Boston seemed pretty excited to find out that the Patriots contingent was in attendance on Sunday.

The game tipped off about 15 hours before Brady's suspension was announced on Monday.

Just look at Gronk and Kraft, they were having such a good time. 

Now that Brady's suspended though, the photo below is probably much more representative of everyone's mood in New England. 

Gronk and Belichick probably won't be smiling anymore this offseason, so let's remember these photos fondly.

Especially the one below because we won't be seeing that again unless the Patriots win the Super Bowl this year. 

This will probably be Bill Belichick's final smile of the offseason. (Twitter/ACorddry)
This will probably be Bill Belichick's final smile of the offseason. (Twitter/ACorddry)