It's safe to say Logan Paul 's no longer in his boxing prime -- in fact, his "Impaulsive" co-host Mike Majlak tells TMZ Sports the Maverick's days in the ring are long gone ... that is, unless it's for WWE. We caught up with the New York Times best-selling author out in L.A. this week, where he told us that his pal Logan's interests are all about wrasslin' these days. "I think he's going to WWE wrestle for the rest of his life, that's it," Majlak said. LP's last boxing match was in 2023 ...