So I've been training BJJ for about a year or 2. And until recently I haven't really sparred with anyone outside of my gym. Well the other day one of my good friends who's a really big wrestler dude said he wanted to spar with me so we did. And every single time he came into my guard he'd just pick me up and slam me (on mats of course) and it got really irritating cause he'd keep doing it until I let go. I started thinking about it yesterday and was curious to get a second opinion. Would uncrossing my legs and going for a hook sweep work? Or would the positioning of his legs while trying to pick me up make this harder to accomplish? Thoughts?