WWE Star Randy Orton -- Nut Shot Attacker Was Rogue Wrestler

The guy who attacked WWE Superstar Randy Orton during a live event in South Africa yesterday turned out to be a wrestler after all ... but not one who works for the WWE.

According to Enca.com in South Africa ... 20-year old Tshepo Sekhabi -- an independent wrestler who calls himself "Jozi the Wrestling Machine" -- told the site he hoped to catch the attention of WWE officials by going rogue and jumping Orton after his match.

As we previously reported ... Tshepo snuck his way past security yesterday during an unscripted segment -- entering the ring and blasting the wrestler with a mean low blow.

Sekhabi told the site, "I just don’t like Randy Orton; this was an opportunity for me ... so I got up there and made a name for myself.”

Bad move -- because a case investigator says Sekhabi was instantly booted from the hotel that was hosting the event.

The investigator says Tshepo wasn't "formally arrested" ... but says Orton is free to pursue further legal action against Sekhabi.

A rep for WWE says Orton is "considering pressing charges" but no decision has been made yet.