Last week in this space, we discussed the players who are the most indispensable for teams fighting for a spot in the playoffs. But when talking trade deadline, call-ups and other bits of roster construction, there are players who are not necessarily the team's top contributors, but are extremely important open questions as teams plan over the next month or two. How these players fare this month may have a large effect in how the trade deadline plays out.
9hMark Ogden, Senior Writer ESPN FC
5hMatt Wilansky & Sean Coyle
15mJason Davis, U.S. soccer writer