Nov 28 (Reuters) - Embattled property developer China Evergrande Group said on Monday that its unit has entered into a deal to sell a piece of commercial land in Shenzhen for 7.54 billion yuan ($1.05 billion). ($1 = 7.2067 Chinese yuan renminbi) (Reporting by Jaskiran Singh in Bengaluru; Editing by Shounak Dasgupta)