Mrva will stun Maestrelli in Olbia Round 2

Maxim Mrva will upset Francesco Maestrelli to advance at the ATP Challenger Olbia in Olbia, Italy on October 15. The lower-ranked Mrva enters on a streak after Hynek Barton retired in his first-round match with the score at 6-2, 2-1, and he will use that momentum in the Round 2 match scheduled for…