I've only done naked wrestling once or twice, but yes, I do easily get erections when wrestling. I remember one session with a friend around 20 years ago. We were out on a nude hike and encountered a large muddy puddle and decided to wrestle. Was a lot of fun and we both got erections.
An erection is a normal reaction of Male Body, in any kind of situation. Especially during physical activity. Should be normal and accepted, to get an erection anywhere in any situation. A Male should have the right to let a erection happened in every situation.
Back in the 60s when in high school I was a member of my schools wrestling team a number of us hardly ever got in on a match as we were not meeting the coaches standards , So David Browns dad owned a old gym he got from the town and we decided to ask him to let us boy use it to wrestle in It had showers , Some how the school got word of what we were going to be doing and are parents were told the school did not want use wearing are team gear some insurance thing , Well we used what we had t shirts and shorts well those got damaged rips and tears , Th en we decided to Greek style aka naked, Well when naked body's are tangled up together erections happen so it was pretty common to have a bunch of use sporting had on , And some foil play my or my not have ensued