Norwich City head coach Johannes Hoff Thorup believes Borja Sainz's desire to improve is the key to his brilliant start to the season.
The Spaniard scored twice in Sunday's 3-3 draw with Middlesbrough, taking his goals tally for the season to 11 from 14 appearances.
It has made the 23-year-old one of most talked-about players outside the Premier League.
"For him to execute, it's about quality, but he is training every day on his finishing," Thorup told BBC Radio Norfolk.
"We had three games in seven days but he's always there to do a little bit extra and it's up to me and the performance staff to pull him in.