Buster Posey, former San Francisco Giants catcher and current minority owner, played a crucial role in securing a six-year, $151 million contract extension for third baseman Matt Chapman. Posey intervened directly with Chapman to finalize the deal, bypassing agent Scott Boras and addressing frustrations with president of baseball operations Farhan Zaidi's negotiations. The contract includes a full no-trade clause, a sticking point in earlier talks. Posey's involvement reflects the Giants' ownership's impatience and lack of trust in Zaidi and Boras. This move is seen as a significant win for the Giants, who have struggled with big-name free-agent signings in recent years.