Mauricio Pochettino has backed Erik Lamela to reach "a higher level" than before his injury problems following his performance against Newport County.
The winger scored his first Tottenham goal in 504 days as his side won 2-0 in Wednesday's FA Cup fourth-round replay at Wembley.
The 25-year-old missed the majority of last season with a hip problem and did not return to action this term until November, although he has played in each of Spurs' last 13 Premier League games.
Pochettino hopes the former Roma star can hit new heights after coming through the difficulties of a lengthy absence.