Not sure, Warnock doesn't seem to massively rate him, although he's got him summed up pretty spot on
https://www.gazettelive.co.uk/sport/football/transfer-news/middlesbrough-transfer-striker-yannick-bolasie-19113502
Warnock knows Bolasie well having managed him at Crystal Palace and was asked his thoughts on the forward.
He said: "He can be frustrating. One minute he's unbelievable and the next minute you think, 'Is he even a footballer?'
"He's a good lad but whether that will come off I don't know."