<p class="bodytext">Cristiano Ronaldo picks himself up and gets back to business in Serie A against promoted Frosinone on Sunday after his return to Spain in the Champions League ended in a tearful sending off against Valencia.</p>.<p class="bodytext">The former Real Madrid star collapsed dramatically on the pitch after being handed a controversial red card just days after his first goals for Juventus saw the champions keep their 100 percent record to pull three points clear at the top of the Serie A table.</p>.<p class="bodytext">Juventus beat Valencia anyway thanks to two Miralem Pjanic penalties. And after securing a winning start to the European campaign which is their focus this season, the Turin giants look to keep their quest for an eighth straight domestic title on track with a trip to Frosinone.</p>.<p class="bodytext">Coach Massimiliano Allegri is confident that Ronaldo, 33, will be back to business against a side from outside Rome who are second from bottom of the league with one point.</p>.<p class="bodytext">"He was upset and he needs time to calm down. He needs to rise above it and focus on Sunday, even if these things leave a bitter taste in the mouth," said the coach.</p>.<p class="bodytext">The champions will be without German midfielder Sami Khedira who suffered a thigh muscle injury in Spain.</p>.<p class="bodytext">Douglas Costa also suffered an adductor injury, but the Brazilian would have missed Sunday's league game as he sits out a four-match ban for spitting last weekend.</p>.<p class="bodytext">"He's picked up an adductor injury from virtually his first sprint," said Allegri.</p>.<p class="bodytext">"Unfortunately I was expecting this because the last few days have been draining for him mentally.</p>.<p class="bodytext">"When these things happen, the risk of injury is very high. It was a tactical decision that he would only come on for the last 20 minutes, but that was still enough for him to get injured."</p>
<p class="bodytext">Cristiano Ronaldo picks himself up and gets back to business in Serie A against promoted Frosinone on Sunday after his return to Spain in the Champions League ended in a tearful sending off against Valencia.</p>.<p class="bodytext">The former Real Madrid star collapsed dramatically on the pitch after being handed a controversial red card just days after his first goals for Juventus saw the champions keep their 100 percent record to pull three points clear at the top of the Serie A table.</p>.<p class="bodytext">Juventus beat Valencia anyway thanks to two Miralem Pjanic penalties. And after securing a winning start to the European campaign which is their focus this season, the Turin giants look to keep their quest for an eighth straight domestic title on track with a trip to Frosinone.</p>.<p class="bodytext">Coach Massimiliano Allegri is confident that Ronaldo, 33, will be back to business against a side from outside Rome who are second from bottom of the league with one point.</p>.<p class="bodytext">"He was upset and he needs time to calm down. He needs to rise above it and focus on Sunday, even if these things leave a bitter taste in the mouth," said the coach.</p>.<p class="bodytext">The champions will be without German midfielder Sami Khedira who suffered a thigh muscle injury in Spain.</p>.<p class="bodytext">Douglas Costa also suffered an adductor injury, but the Brazilian would have missed Sunday's league game as he sits out a four-match ban for spitting last weekend.</p>.<p class="bodytext">"He's picked up an adductor injury from virtually his first sprint," said Allegri.</p>.<p class="bodytext">"Unfortunately I was expecting this because the last few days have been draining for him mentally.</p>.<p class="bodytext">"When these things happen, the risk of injury is very high. It was a tactical decision that he would only come on for the last 20 minutes, but that was still enough for him to get injured."</p>