IV. Evaluate the pharmacokinetics of Sorafenib (alone and in combination) and bevacizumab in patients enrolled on the maximum tolerated dose (MTD) dose level of Sorafenib and bevacizumab representing the recommended phase II dose (RPTD) schedule (200mg once daily [QD] Sorafenib and 5 mg/kg intravenously [IV] Q 2 weeks of bevacizumab).