As noted earlier here on the website, WWE has a new policy for dealing with concussions. If a Superstar or Diva even shows signs of a concussion, they are immediately pulled from in-ring action and must past an ImPACT concussion test before they are cleared to return.
Even after wrestlers pass an ImPACT concussion test, they are evaluated for signs of post-concussion syndrome (headaches, nausea, disorientation). Once they past an ImPACT test and WWE doctors determine they are not showing any post-concussion symptoms, they are then cleared to return.
-- Michael Cole posted the following to Twitter confirming that this weekend's JBL & Cole Show will be postponed due to the Stanley Cup finals:
Again @jclayfield and my live radio postponed sat night in Chicago due to Blackhawks game. Details about Philly show coming soon