Wenger pours encomium on sanchez for sterling perfomance
I think there may be a mistake here!
Arsène Wenger is a former football manager, and Alexis Sánchez is a former player who played under Wenger at Arsenal. However, I'm not aware of any instance where Wenger has praised Sánchez for a performance by Sterling, as Sterling is a player who plays for Manchester City, not Arsenal.
Additionally, it's unlikely that Wenger would use the word "encomium" to describe a praise, as it's a rather formal and old-fashioned term that is not commonly used in everyday language.
If you meant to ask about a different topic or scenario, please feel free to rephrase your question!