Sloane Stephens practiced in Birmingham's BJCC, the site of this weekend's Fed Cup semifinal, on Monday. Christina McHale, another possible USA team member, was at home catching up on school assignments; McHale made it to the third round in Charleston last week. Captain Mary Joe Fernandez says that she hopes McHale can come to Birmingham soon so she can observe her. She also indicated that there is at least one other player whom she wants to observe in the BJCC arena.
In terms of being able to handle the pressure of Fed Cup, I think McHale is the better choice of the two mentioned; I don't know who the other players are.
Venus Williams, after a hitting session on Sunday, told Fernandez that she felt "so-so."