Devon Cajuste -- the breakout star of "Hard Knocks" -- says he's received real interest from other NFL teams after getting cut by the Browns ... but he's got a Plan B in case it doesn't work out.
The 25-year-old showed real promise during the HBO docu-series -- and made some solid catches in the pre-season -- but was told he needed to work on his blocking.
Cajuste says teams have already reached out to him ... but not to sign him right away. They're more interested in having him in their back pocket in case there's a need for a TE later in the season.