No One Left Behind
Soldiers are a great example of a team. When they compete, there is a lot at stake. No matter what the circumstance, they do everything in their power to make sure nobody is left behind.
A “no one left behind” attitude notices when a teammate is struggling to keep up. Maybe they are overwhelmed. Maybe they are struggling because of an injury. Some injuries are not visible except for their effects on someone. A true teammate notices and doesn’t judge but rather takes the time to put an arm around their struggling teammate to help them and carry them if necessary.