The web search results mention the Knicks and Hawks playing a Game 5, but the evidence is fragmented and does not provide enough independent sources (2+) to corroborate the specific claim that they are 'back in action for a pivotal Game 5.' The sources reference Game 4 and general playoff scenarios, but do not confirm the current status or necessity of a Game 5.

The web search results mention scenarios where the series is tied 2-2 (e.g., 'Knicks Drop Game 2 at MSG 107-106, Series Tied 1-1 vs. Hawks...'), but none of the provided evidence establishes the specific condition that 'if the series is tied 2-2, the winner of the game at MSG will have a chance to close the series in Atlanta.' The evidence is insufficient to confirm this specific structural playoff detail.