The Ibrox club have received notices of complaint that could lead to bans and fines.
The midfielder is close to being Celtic's second signing of the January window.
The Celtic women coach says the newly-professional team are working to challenge for the title.
During his playing days, Brown was a member of Rangers' famed 'Iron Curtain' defence.
The energetic manager was getting his message across while preparing to face Airdrieonians.
The Hearts boss has drawn criticism from Glenn Whelan and Christophe Berra.
Fears over dementia link could see under 12s stopped from heading during training.
The Rangers captain will only miss a handful of games.
The winger will join the Pittodrie club in the summer after signing a three-year deal.
Brown joined the Light Blues under Bill Struth and made 296 appearances during a decade at Ibrox.
The Poland under-21 striker joined the champions on Tuesday from Jagiellonia Bialystok.
Murphy set for switch to the English League One club until the end of the season.
Docherty set to move south for second time after starring role at Shrewsbury last season.