The Red Sox have outrighted right-handers Isaiah Campbell and José De León to Triple-A Worcester, according to their transactions tracker at MLB.com. That indicates both players cleared waivers in recent days.
There was no previous indication that either player had been designated for assignment but these kinds of moves are common at this time of year, as most clubs are facing upcoming roster crunches. The 60-day injured list goes away five days after the World Series, meaning several players need to retake 40-man spots. Some will also become free agents but many clubs often end up with more than 40 players in the mix.