Grot appeared for Leeds United's first team last week.
Leeds United are set to lose Andy Lonergan to Sunderland today.
The Polish goalkeeper appears to have completed his move to Leeds United.
Miazek is initially said too have joined Leeds United on trial.
Leeds United have offered a contract to young Polish goalkeeper Kamil Miazek while also sending Bailey Peacock-Farrell to York City.
Kamil Miazek will play for Leeds' Under-23s initially but will hope to challenge Felix Wiedwald for the number one jersey at Elland Road.
Leeds United are reportedly on the verge of agreeing a deal for young goalkeeper Kamil Miazek.
Leeds United are reportedly set to sign goalkeeper Kamil Miazek.
Kamil Miazek wanted to be Feyenoord's first-choice goalkeeper but failed to make the grade - but can he succeed at Leeds United?
Leeds United goalkeeper Bailey Peacock-Farrell has struggled for appearances at Elland Road recently.