We must focus on ourselves - Smith
Walsall manager Dean Smith was left looking anxiously over his shoulder after his side went down 4-2 at Exeter after having Manny Smith sent off.
The defeat leaves Walsall, for whom Smith was dismissed after receiving his second yellow card, three points above the drop zone with two games left to play.
Boss Smith said: "I felt the sending off was a poor decision and then we had the ball over the line in the first half, but it wasn't given.
"The officials told me at half-time that they couldn't guess, even though my subs who were warming up said the ball was two yards over the line.
"When you're at the business end of the season and in the position we are in, those decisions are frustrating."
Smith added: "All we can do is keep concentrating on our games and we'll do that. We've got to make sure we look after ourselves and it's about what we do. We could've been breathing a lot better had we won this game and gone six points clear of the relegation zone, but that hasn't happened."