07:14 AM ET 12.27 | Let the bidding begin. The Yankees and Seattle Mariners may be going head-to-head on another big-ticket free agent. The M's landed Robinson Cano with a deal 10 years, $240 million -- that exceeded the Yankees' offer by $65 million, and they could be a real competitor with the Bombers for Japanese righthander Masahiro Tanaka. "The Mariners are going to be a factor," one baseball official said. "They have a following in Japan. They enjoyed what they had when Ichiro (Suzuki) was on the team. "They want the chance for moves like getting Cano to pay off. And they envision (Felix) Hernandez paired with Tanaka at the top of the rotation." ... All 30 major league teams were notified that the 30-day period to sign the star 25-year-old righty began at 8 a.m. EST Thursday.