MLB News: Nick Castellanos opts out - Beyond the Box Score
Nick Castellanos reportedly set to opt out of Reds contract
Nick Castellanos likely to opt out of deal with Reds
Former Tigers star Nick Castellanos signs $100 million contract with Phillies
Nick Castellanos rumors: Marlins turned down star OF, Derek Jeter target
Philadelphia Phillies OF Nick Castellanos agree to five-year, $100M deal
Former Reds outfielder Castellanos among those with $100M contracts not on All-Star teams
How low could the Cincinnati Reds payroll go? - Red Reporter
The Red Report 2020 - Nick Castellanos - Red Reporter
Reds' Contract With Nick Castellanos Includes Annual Deferrals - MLB Trade Rumors