The Bulgaria international missed the opening-day victory over NAC Breda with a back injury, giving 40-year-old club stalwart Sander Boschker a rare outing between the posts. Boschker did not disgrace himself, producing a number of good saves, but Twente coach Co Adriaanse will nevertheless be glad to have his number one back on duty on Saturday, though Belgian winger Nacer Chadli is again likely to miss out with a knee problem. The match pits two of the five teams in the division who won their opening game against each other. Most notable of those was AZ, who claimed an impressive 3-1 win over PSV Eindhoven. Add to that a two-legged Europa League win over Jablonec and the Alkmaar side have had a more than satisfactory start to the season. The only black cloud is the ongoing furore surrounding goalkeeper Sergio Romero, who has not returned to Holland following his participation in the Copa America with Argentina. Despite the growing sense of frustration about his absence in Alkmaar, Romero this week said he was not due back until September 4. He told De Telegraaf: "Me? Back early? Really? I know nothing about that. "I was in touch with the club when I finished at the Copa America. And (director of football) Earnest Stewart called on July 16, asking if I would be back. He said September 4, and not in August. "I do not know why they're saying that in Alkmaar." PSV, meanwhile, will get the chance to bounce back when they face RKC Waalwijk. PSV boss Fred Rutten this week spoke to unsettled pair Wilfred Bouma and Erik Pieters, who have been linked with moves away from the club in a search for more playing time. "I've talked with Bouma and can say it's a storm in a teacup," Rutten told AD Sportwereld. "It's resolved. I made one thing clear: he cannot leave. The same is true for Pieters." Also on Saturday, Feyenoord will look to build on their opening-day derby win over Excelsior when they host Roda JC, conquerors of FC Groningen last time out, while VVV Venlo travel to Vitesse Arnhem. Champions Ajax, nominally top of the division following a 4-1 win at De Graafschap last week, will look to make it two out of two against Heerenveen on Saturday. De Graafschap go to FC Utrecht, while Heracles host NAC and ADO Den Haag travel to Groningen. In Monday's fixture, NEC Nijmegen entertain Excelsior.