NHL owners and union officials are expected to be negotiating again at league headquarters on Wednesday, the 67th day of the lockout.

The two sides are trying to work out impasses on core issues such as splitting revenue and player contracts. On Tuesday, union leaders met for internal discussions.

If a deal is not struck soon, more games will have to be canceled in an already shortened season. The lockout has wiped out 327 games so far. The next games still scheduled are in December.