The Miami Dolphins' desire to upgrade the fullback position apparently won't stop with Tuesday's waiver wire claim of former Bears fullback Evan Rodriguez. According to the Baltimore Sun, veteran fullback Vonta Leach, who was released by the Ravens on Tuesday, will visit the Dolphins on Wednesday. The Ravens released Leach, a three-time Pro Bowler who has a reputation as a punishing lead blocker, because they were unable to reach an agreement on how to restructure a contact that carried a $4.33 salary-cap figure. Leach, who is 31, has rushed for 70 yards on 24 carries, scoring three touchdowns during his nine-year NFL career. But he's caught 112 passes for 749 yards and four touchdowns in his 130 career games with the Ravens, Houston Texans and Green Bay Packers. Dolphins head coach Joe Philbin was an assistant on the Packers team Leach was part of his first three seasons in the NFL. The Dolphins, which presently have approximately $17 million in cap space, are looking for someone to compete with Jorvorskie Lane for the role as the team's new lead blocker for the team's tailbacks. Lane, a former Texas A&M standout, made the 53-man roster last season as a former Arena League journeyman, and started five games. However, Lane continues to battle weight and conditioning issues that have plagued him throughout his football career.