Aleksandar Mitrovic scored form the spot in Newcastle United's 3-3 draw with Manchester United.
Grujic watched on from the stands as Liverpool drew 3-3 with Arsenal in the Premier League.
Forster returned from a 10-month lay-off in a 2-0 win over Watford.
Celtic have been linked with a number of players this month.
The youngster is set to stay at St Andrew's until 2019.
The 17-year-old will not feature for Leeds United against Manchester City in the academy competition.
Jack Hunt left Crystal Palace to sign permanently for Sheffield Wednesday.
The Tunisian has not played a single game for the club.
Christian Eriksen has scored just four goals for Tottenham Hotspur so far this season.
Liverpool drew 3-3 with Arsenal at Anfield last night.
Tony McCoy is to receive the lifetime achievement award at this year’s Sports Personality of the Year show on Sunday.
Under lock and key inside the Cabinet Office at 70 Whitehall lies the only paper copy of the the secret playbook of cabinet government in Britain: the precedent book. This is the guide to the inner workings of government.
Britain would be landed with £11bn in new tariffs if it left the EU and did not get a free trade agreement, according to the leader of the group campaigning to stay in.