The Malaysian outfit have been one of the best performers in the 2012 Great Eastern-YEO's S.League season, but their unbeaten run finally came to an end last Sunday when they lost 1-0 to Home United.
And while Woodlands are not expected to pose as tough a test as the Protectors did last weekend, Harimau coach Ong Kim Swee has still urged his side to be cautious.
"I think there are a few more teams that we're going to face that will pose a tough test to us, not just Home United," Ong said.
"You can't afford to take any team lightly in this league - you'll get murdered for that."
Woodlands themselves will be flying high after a very impressive performance in last Thursday's 2-2 draw with SAFFC, where South Korean striker Moon Soon-ho grabbed a brace.
Elsewhere on Sunday, defending champions Tampines Rovers will be looking to keep up their fine form against Gombak United at the Clementi Stadium.
Following a poor start, the Stags reignited their campaign two weeks ago with a 2-0 win over Home, before trashing Eastern derby rivals Geylang United 5-1 last Saturday.
In addition, Steven Tan's men also received a boost on the continental front after beating Terengganu 2-0 in the AFC Cup on Tuesday.
However, things will not be easy on Sunday, especially coming up against a Gombak side high on confidence after recording their first home win of the season last week - a 2-1 victory over Hougang United.
Friday's action saw Albirex Niigata claim a dramatic 2-1 victory over Hougang thanks to Norihiro Kawakami's 94th-minute winner, while DPMM FC defeated Tanjong Pagar United 3-2 at the Hassanal Bolkiah National Stadium.
On Thursday, high-flying Balestier Khalsa piled more misery on struggling SAFFC by beating them 1-0, courtesy of substitute Andrew Tan's 69th-minute strike, while goals from Michael King and Jozek Kaplan helped Geylang United beat Courts Young Lions 2-0.
Sunday's S.League Fixtures
Harimau Muda vs Woodlands Wellington
Tampines Rovers vs Gombak United
Friday's S.League Fixtures
Thursday's S.League Results