Box Score CALEDONIA, Mich. - The women's tennis team took part in the DU Invitational over the weekend and welcomed Ferris State and Grand Valley State to the DU Tennis Courts. The Panthers picked up four singles wins, two each coming from Willemien Coetzee and Kumiko Yamaguchi. Coetzee defeated Morgan Waller of FSU (5-2, ret.) and Vera Griva of GVSU (6-4, 7-5). Yamaguchi won both of her matches due to retirement against Marija Leko of GVSU and Brittany Lavenant of FSU.