It was like that first time all over again. She was playing with him. He felt the air rush out of his lungs when she knocked him down like that, but didn't get up right away. He would roll out to a safe position once Diana was on her feet. Then it was just a matter of spacing. She was using his own momentum against him, and two could play at that game.
Evidently, he'd waited too long to get up, as Diana kicked him hard in the ribs and he slid away. Thor came to rest with his back against the base of one of the trees, his breathing harder for a second because while Diana hadn't meant to damage, she was stronger than she realized. The distance allowed him to get to his feet though, leaving Diana plenty of room to press her advantage.