Sources: New WNBPA proposal offers concessions (1:14) The Women's National Basketball Players Association submitted a new counterproposal to the WNBA on Friday evening with some concessions on revenue share and housing, a source familiar with the collective bargaining negotiations told ESPN. In the new CBA proposal, the players' union is asking for players to receive 26% of gross revenue (defined as revenue before deducting expenses) over the lifetime of the agreement, with the salary cap in Year 1 of the deal (about $9.5 million) unchanged from its previous offer. The revenue share split is down from 27.5% of gross revenue as proposed in the WNBPA's Feb. 17 proposal, a change that a source said amounts to nearly $100 million in reductions on revenue share.…