The plate push up exercise is a great way to add a little more difficulty to the push up exercise. If the player is easily able to rep out push ups you may want to consider adding a weighted plate to their back to help make them work harder. Along with making them work harder, it will also allow them to see more strength gains as well.
This basketball exercise is also a great transition exercise between push ups and bench press. If there is a younger player that isn't quite ready to get on the bench and start using free weights, you can use the weighted plate. It will allow the player to keep progressing with their strength development, but keep them away from free weights if they aren't quite ready for them yet.