According to WrestleVotes, an account that has broken several major stories in the past, Dean Ambrose is not expected to return to action before SummerSlam. The belief is that he could return sometime in September.
Getting a few questions regarding Dean Ambrose’s return lately. Can’t say for certain, but source said “not to expect him anytime before SummerSlam. September seems more likely at this point.”
— WrestleVotes (@WrestleVotes) July 11, 2018
Dean Ambrose was at the WWE Performance center last month working on rehabilitating his triceps tear. It’s unknown at the time of press if he was working in the ring or simply doing his physical therapy. We will keep you updated if we hear anything new regarding his return.