Watford sporting director Cristiano Giaretta insists Emmanuel Dennis and Ismaila Sarr could stay at the club.
Both players have been linked with Newcastle United.
Speaking to the Watford Observer, Giaretta said: "It's highly likely that if they are here when the season starts, they will be available for first-team games if Rob chooses to select them.
"They would like to leave and have been looking at potential moves, but they are not causing us any problems.
"They are not banging on our door to get away as soon as they can.
"They will stay at the club if the market doesn't deliver something we think is acceptable, in the same way Sarr stayed with us the last time we were in the Championship."