On Saturday, he provided a finishing masterclass that impressed Pochettino as Lucas staked a claim for a more regular starting spot, especially with Spurs talisman Kane sidelined for several weeks with an ankle injury.
Forward Lucas struck his first treble since moving to Europe and joining Paris St Germain in 2013 as Spurs cemented their position in the Premier League top four with a thumping win over the already-relegated visitors at their new stadium.
"He was so upset after the game, it was a hard moment for him", Pochettino said.
Kane suffered his fifth ankle ligament injury since September 2016 in a challenge with Fabian Delph during Spurs' 1-0 Champions League win over Manchester City on Tuesday, and his second in three months.
Heung-min Son, the hero of the first leg, will start on Wednesday after being rested against Huddersfield, and Lucas could well start too after this magnificent performance, with Dele Alli also doubtful having broken a bone in his hand during the first leg. "It's a hard moment for him, and watching the action, we feel so disappointed and it's hard to accept the situation".
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Wade scored the first basket of the game on a dunk, Philadelphia scored the next eight - and it was all Miami the rest of the way. Yet, in the postseason, while Wade's on-court plus-minus remained the same (+4.0) his on-off plus-minus dropped to -2.7.
"Players need to have the possibility to play to show the quality and that is why sometimes all the managers are disappointed when the people say about rotation, about selection of the starting XI. We'll see and we'll take a decision that is best for everyone".
Also being monitored by Spurs physios is Kane's worldwide teammate Alli, who broke his hand against City.
"He is a player who we need to assess tomorrow and after tomorrow we will take a decision".
Spurs legend King believes that target man Llorente did perform well on his return to the side, which could be even more crucial due to Kane's injury problem.