Pats sign Rob Gronkowski's baby brother

The New England Patriots completed a Gronkowski brothers trilogy Saturday, signing Glenn Gronkowski to their practice squad.

The 23-year-old Glenn, the youngest of the five Gronkowski brothers, was an undrafted free-agent fullback from Kansas State. He played in the Bills' season opener before being cut Sept. 12.

Dan Gronkowski, Rob's older brother and a former tight end, played with the Pats for five games in 2011.

Gronk, meanwhile, has played just 14 snaps this season while recovering from a hamstring injury. However, the Patriots are 3-0, thanks in part to fellow tight end Martellus Bennett, who has 10 catches for 138 yards and a TD in his first year with the Pats.