The 18-year-old joined the Cobblers on an initial month-long youth deal last week but impressed as a substitute in the 1-0 win against AFC Wimbledon.
“We’ve agreed with Liverpool to extend Toni’s loan until the end of the season,” manager Aidy Boothroyd confirmed. “Toni is a fantastic player and he’s got an awful lot going for him.
“He’s got this great ability to go past people.”
A goal apiece from James Tomkins and Luka Milivojevic handed Crystal Palace a crucial 2-0 win over Huddersfield at the John Smith's Stadium on Saturday evening.
Manchester United bounced back from their Champions League exit as they beat Brighton 2-0 at Old Trafford on Saturday night to reach the FA Cup semi-finals.
Tottenham reached the FA Cup semi-finals after they cruised to a 3-0 victory over Swansea in their quarter-final clash at the Liberty Stadium on Saturday.
Premier League basement club West Brom squandered the lead as they suffered a 2-1 defeat to Bournemouth at the Vitality Stadium on Saturday.
Chesterfield boss Jack Lester felt his side were unlucky not to claim all three points after their 1-1 draw at Cheltenham.
New Swindon manager Phil Brown revelled in his side's victory at Cambridge in his first game in charge.