El Salvador come into this game in high spirits after they won the first leg 4-0, making the game this week all but decided, provided Saint Kitts do not stage an unbelievable comeback.
Match preview
El Salvador are within touching distance of beating Saint Kitts following their first-leg heroics.
Tony Rugamas, Joshua Perez and Darwin Ceren were all on target for the national team in that tie.
Dominant throughout, El Salvador were 3-0 up within 20 minutes and had registered ten shots on target by the end of the 90 minutes.
Head coach Hugo Perez will hope his men can keep up the momentum as his side go into this game and for what follows.
Saint Kitts will be disappointed with how the first leg went, with the team performing well in group qualification.
However, Leonardo Neiva's men were just not up to scratch against El Salvador, with the team managing just one shot on target, 288 passes and coming away with only 33% of the possession.
Still, although the tie is finished on paper, the Caribbean nation has 90 minutes to pull off something miraculous.
Neiva's men have suffered defeat in their two most recent matches without scoring, though, so their attackers must find their shooting boots as a matter of urgency.
El Salvador World Cup Qualifying - North Central America form:
Saint Kitts and Nevis World Cup Qualifying - North Central America form:
Team News
El Salvador are unlikely to tinker too much to the starting eleven, although some younger players may get a chance to prove themselves during the course of the game.
Rugamas is expected to lead the line for the team, while Ceren and Perez could also flank the frontman.
It is also unlikely that Saint Kitts will line up any differently, with Neiva certain that this is his best side.
Vinceroy Nelson and Rowan Liburd could both get some minutes after making cameo appearances last time out.
El Salvador possible starting lineup:
Martinez; Tamacas, Zavaleta, Gomez, Larin; Perez, Ceren, Portillo, Monterrosa, Rivas; Rugamas
Saint Kitts and Nevis possible starting lineup:
Archibald; Leader, Maynard, Williams, Flemming; James, Mitchum; Somersall, Sawyers, Freeman; Panaylotou
We say: El Salvador 2-0 Saint Kitts and Nevis
With the game just about done and dusted, we do not expect Saint Kitts to overturn the result, and El Salvador will likely continue with the assault.