You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "What defensive midfielder/center back was contracted by the same man who contracted Carlos Tevez?" whose answer is Javier Mascherano.
Each document should contain about 30 words, and these documents should contain useful information.

Query: who contracted carlos tevez
Useful Output:

Doc 1: West Ham United have rejected a bid by want-away striker Carlos Tevez to cancel his contract with the London club as he tries to move to
Doc 2: Tevez caused a stir in December 2016 when Chinese Super League team Shanghai Shenhua revealed it had signed him from Boca on a two-year contract
Doc 3: Retired Joined: Jun 4, 2022 Contract expires: - Outfitter: Nike. Gallery. Carlos Tévez - Corinthians, 2005. IMAGO. Carlos Tevez West Ham. IMAGO.
Doc 4: On 31 August 2006, 15 years ago on Tuesday, Argentine duo Carlos Tevez and Javier Mascherano signed for West Ham United, arriving from Brazilian
Doc 5: When the Argentinian joined Manchester United, the Red Devils agreed to a two-year lease deal worth £10million with his owners. United have