Linq code for group by and sum

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C#

ASP.NET

LINQ

SELECT     SUM(p.Runs + p.Wickets + p.Catches + p.Runouts) AS points, u.UserId
FROM         tblPlayerUser AS pu INNER JOIN
                      tblUser AS u ON pu.UserId = u.UserId INNER JOIN
                      tblPlayer AS p ON pu.PlayerId = p.PlayerId
GROUP BY u.UserId

This is my sql query to fetch the records.

I want a code which will perform this query's operation in Linq to Sql(C#)
Can Anyone help me