Sparta Rotterdam could be without leading scorer Sjaak Polak for the rest of the season.
Sparta Rotterdam could be without leading scorer Sjaak Polak for the rest of the season.
The left-back has water on the knee and will undergo an exploratory operation on Friday.
Meanwhile, Jeffrey Vlug has reached agreement with Sparta over a contract extension.
The 20-year-old has agreed a four-year deal at the Sparta-Stadion.
Vlug has impressed in his first season in the Eredivisie scoring three times in his 14 starts for the Rotterdam outfit.
