Jennifer Lopez, Alex Rodriguez engaged?

Jennifer Lopez has sparked engagement speculation by flashing a massive ring in a video posted by Alex Rodriguez on Wednesday.

Taking to his Instagram account, the Baseball shortstop posted a video of Lopez, from the Fenway Park, wearing the sparkler.

"Jennifer, what's the sign?! #Game2," the caption read.

In the video, the 'Love Don't Cost A Thing' singer can be seen impersonating a baseball signal while giving fans a glimpse of a diamond ring.

The 'Let's Get loud' singer was spotted wearing the rock in September.

The couple was first linked in March 2017.