The Dodgers offered left-hander Clayton Kershaw a deal worth roughly $300 million during the regular season, according to a report from ESPN.

Both sides were unable to conclude the negotiations during the season, although they progressed enough that there is confidence Kershaw will eventually sign a deal during the winter. His potential deal is projected to be the largest ever for a pitcher.

Kershaw ended his season on a sour note, allowing seven runs over four innings in a 9-0 defeat to the Cardinals in Game 6 of the National League Championship Series Friday. He finished the regular season 16-9 with a 1.83 ERA and a 0.92 WHIP over 33 starts (236 innings), making him a heavy favorite to win his second career Cy Young award.