Rob Gronkowski knows how to get everyone's attention.
The former Patriots tight end teased another announcement to fans on Sunday and has been dropping some hints about what he might say.
After posting a video to Instagram to announce he will make a "big announcement" on Tuesday, Gronkowski posted a Tom Brady video to Facebook that could be a clue for the announcement topic.
Gronkowski, who must let the Patriots know by Nov. 30 if he plans to return, reposted a video posted by his quarterback in 2016, in which Brady uses a conch shell to assemble his receivers.
“Tom Brady, do you think this thing still works?!!,” Gronkowski wrote.
This could mean his announcement will be about returning to football or it could mean he will be announcing another new ad campaign. Time will tell.