One web search result explicitly mentions Embiid committing a flagrant foul by grabbing Mitchell Robinson's ankle during a layup attempt, which aligns with the 'dragging down' description. However, the specific detail about the 'northeast basket' and the 'two years ago' timeframe is not independently corroborated by a second source in the provided evidence.

One web search result mentions Mitchell Robinson 'marked his return' in a game against the 76ers, and another mentions he suffered a 'stress injury to his left ankle'. While it is highly probable he was returning from an ankle injury, the specific phrase 'returning from ankle surgery' at the exact time of the Embiid incident is only supported by the context of the provided search results without a second independent confirmation.

One web search result explicitly states that Mitchell Robinson 'marked his return in Game 3 for the Knicks with a statement poster jam over 76ers star Joel Embiid'. This corroborates the act of dunking over Embiid, but the specific detail of the 'lob from the baseline' is not independently confirmed by another source.