Alright, so me and my pal are working through making a 5e fighty Cleric. He wants to take the Sentinel and Shield Master feats. Sentinel and Shield Master's relevant parts read:
You have mastered techniques to take advantage of every drop in any enemy's guard, gaining the following benefits:
- Creatures within 5 feet of you provoke opportunity attacks from you even if they take the Disengage action before leaving your reach.
You use shields not just for protection but also for offense. You gain the following benefits while you are wielding a shield:
- If you take the Attack action on your turn, you can use a bonus action to try to shove a creature within 5 feet of you with your shield.
Shoving allows you to make a Strength (Athletics) Check versus either their Strength (Athletics) or Dexterity (Acrobatics) check, and if you succeed you can either knock the target prone or push them 5 feet away.
So my buddy came up with the idea of using the Shield Master's Bonus Action to shove a creature during the Attack Action, and then taking an Opportunity Attack from the Sentinel Feat, since they left his reach (he is wielding a sword, in case that matters here).
So the so the question is: Can the Shove Action provoke Opportunity Attacks as described by the Sentinel Feat?
It just occurred to me that perhaps the Shield Master portion isn't important for the question, but perhaps it is relevant. Sentinel does describe Opportunity Attacks in a slightly different way than they are described on page 195 of the PHB.