According to a column by Joe Posnanski, Vernon Wells has the worst contract in all of baseball. The Blue Jays gave Wells a seven-year, $126 million contract after the 2006 season. Below is a list of the eleven worst contract in the MLB, according to Posnanski. 1. Vernon Wells 2. Jose Guillen 3. Barry Zito 4. Carlos Silva 5. Alfonso Soriano 6. Gary Matthews 7. Alex Rios 8. Kerry Wood 9. Travis Hafner 10. Jeff Suppan 11. B.J. Ryan