The official WWE website has updated their match preview for  Bad News Barrett vs. WWE Intercontinental Champion Daniel Bryan at Sunday's Extreme Rules pay-per-view which now notes Bryan is undergoing "diagnostic testing" to see if he is able to perform.  Michael Cole and JBL mentioned on Monday's Raw that the match is in jeopardy due to Bryan's ongoing health issues.

WWE.com: Daniel Bryan rose above six other Superstars to capture his first Intercontinental Championship in a Ladder Match at WrestleMania. However, if the ever-popular “Yes!” Man hopes to hold onto the title, he’ll have to get past the Superstar who lost the championship that day, Bad News Barrett, at Extreme Rules. Bryan is undergoing diagnostic testing to see if he can defend his title at Extreme Rules.