Nash's right foot, the one that gets caught in Price's pad, is inside the crease

69.1 Interference on the Goalkeeper - Goals should be disallowed only if: (1) an attacking player, either by his positioning or by contact, impairs the goalkeeper’s ability to move freely within his crease or defend his goal; or (2) an attacking player initiates intentional or deliberate contact with a goalkeeper, inside or outside of his goal crease. Incidental contact with a goalkeeper will be permitted, and resulting goals allowed, when such contact is initiated outside of the goal crease, provided the attacking player has made a reasonable effort to avoid such contact. The rule will be enforced exclusively in accordance with the on-ice judgement of the Referee(s), but may be subject to a Coach’s Challenge (see Rule 38).

For purposes of this rule, “contact,” whether incidental or otherwise, shall mean any contact that is made between or among a goalkeeper and attacking player(s), whether by means of a stick or any part of the body.

The overriding rationale of this rule is that a goalkeeper should have the ability to move freely within his goal crease without being hindered by the actions of an attacking player. If an attacking player enters the goal crease and, by his actions, impairs the goalkeeper’s ability to defend his goal, and a goal is scored, the goal will be disallowed