Reports: Cincinnati Reds reach deal with OF Nick Castellanos
Nick Castellanos likely to opt out of deal with Reds
Nick Castellanos exercises opt-out clause in deal with Cincinnati Reds to become free agent - ESPN
Reds' Nick Castellanos opts out of contract, becomes free agent: Sources - The Athletic
Red Sox preferred free-agent outfield target should be Nick Castellanos
Cincinnati Reds' Nick Castellanos declines qualifying offer
Inevitably, Game 5 Found the Slumping Nick Castellanos
Reds' Castellanos returns to ballpark where he's comfortable
Reds Sign Nick Castellanos - MLB Trade Rumors