Robert Griffin III Separated From Wife, Divorce In the Works

Robert Griffin III's marriage is just about over ... the NFL star has separated from his wife and the two are in the process of filing for a divorce ... this according to Cleveland.com.

The Browns QB married college sweetheart Rebecca Liddicoat in 2013 and just last year she gave birth to a baby girl.

But Griffin has reportedly told his teammates and coaches that the marriage has hit a wall -- and both parties are going their separate ways.

And get this ... RG3 has already scrubbed his Instagram page of all traces of Rebecca.

RG3 is said to be having a tough time with the situation -- but he's working through it with the support of family and friends.