Former UFC welterweight Matthew Riddle training at The Monster Factory

Paulsboro, N.J. wrestling school The Monster Factory announced Monday that former UFC welterweight Matthew Riddle has become its newest student.

Riddle compiled up a four-fight winning streak in the UFC between 2012 and 2013, but two of his victories overturned by fight commissions due to failed drug tests.

The Leighton, Pennsylvania native retired from mixed martial arts earlier this year after posting a professional record of 8-3. He began training at The Monster Factory Monday.