Championship side Middlesbrough are reportedly keen to sign Luke Freeman from Steve McClaren's Queens Park Rangers.
Middlesbrough travel to Dean Smith's Aston Villa on Saturday with their position in the Championship play-off places at risk.
Tony Pulis's Championship challengers Boro are willing to pay £2million to bring Birmingham City forward Isaac Vassell to the Riverside.
Former Middlesbrough forward Patrick Bamford starred for Leeds United against West Bromwich Albion on Friday.
John Obi Mikel signed for Middlesbrough in the January transfer window despite interest from Championship rivals Aston Villa.
Mo Besic is on loan at Boro, impressing for the Championship play-off hopefuls after joining from Premier League outfit Everton.
Van La Parra joined Middlesbrough on loan from Huddersfield Town in January, but was also linked with Leeds.
John Obi Mikel started as Boro beat Championship rivals QPR at the Riverside on Saturday.
Newcastle United and Sunderland could be in a transfer battle this summer.
Leeds United, Watford and Middlesbrough have been linked with Gabriel Martinelli of Ituano.