Toivonen scores twice to earn PSV win
Toivonen opened the scoring seven minutes into the second half when he headed home a fine cross from Stanislav Manolev but Milan Kopic replied for the hosts with a close range header.
Toivonen's second, a superb 25-metre drive eight minutes before time, restored the lead and in stoppage time Orlando Engelaar settled the match.
On Friday, champions Twente Enschede were held to a goalless draw by Roda JC Kerkrade.
In the other action on Saturday, Heracles Almelo and newcomers Graafschap Doetinchem registered comfortable 3-0 home wins over Willem II Tilburg and Excelsior Rotterdam respectively, while NEC Nijmegen beat VVV Venlo 1-0.