MLB free agency: A's agree to sign relievers Yusmeiro Petit and Sergio Romo | CBS Sports Headlines MLB free agency: A's agree to sign relievers Yusmeiro Petit and Sergio Romo Petit has had great success in the A’s bullpen the past three seasons; Romo returns to the Bay Area ESN … Continue reading MLB free agency: A's agree to sign relievers Yusmeiro Petit and Sergio Romo