By Tzvi Machlin Baltimore Ravens quarterback Lamar Jackson has accomplished a lot in his four NFL seasons. He’s set records, won awards and taken the Ravens to the playoffs. But a contract extension has yet to materialize as the Ravens hope to sign him to a long-term deal. NFL insider Jason La Canfora is inclined to believe that it won’t materialize before 2023 at all. In a feature for CBS Sports, La Canfora said that both sides “seemed resigned” to the fact that a new deal is “highly unlikely.” He doesn’t foresee the Ravens giving Jackson the $200-250 million deal he wants. As a result, La Ca…