Samuele Pieri will advance past Sebastian Sorger in the M25 Maribor singles draw. Pieri arrives as the tournament's 1st seed at the WTT i-VENT OPEN BRANIK MARIBOR and will chase a share of the $30,000 purse on the event's outdoor clay in Maribor, Slovenia. Pieri will build on his August 26 2-0 win…