Roberts scored the only goal of the game for Leeds, as they got past Hull City at the KC Stadium.
The youngster finished well when given an opportunity, to ensure Leeds took home the three points.
And Bielsa has confirmed that Roberts is now a serious option for him in his first-team.
Bielsa said: “He is a young player. He’s not impressed by the competition, in spite of his young age. Adapted himself very easily. From a technical point of view, his answers are always positive, physical too.
“He’s a player with character and personality. He can express his virtues, skills. This is something very important for a young player. A young player and a serious player.”
Roberts had to wait for his chance at Leeds, after a difficult first few months at the club, but he has proven himself now.
Roberts now has three goals to his name for the season, despite beginning the campaign as Bielsa’s side’s third choice striker.
Roberts has been given his opportunity due to injuries to both Kemar Roofe and Patrick Bamford, and he has certainly taken his chance.
Leeds are now sitting back at the top of the Championship table, although some of their closest rivals play later tonight.
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