Trying To Get Last Ten Clients

I'm trying to get the last ten unique clients viewed by each user. I have tried using the TOP (N) but it does not show the last ten just any ten.

When a user views a client record, a record is saved to the tblUserRecentViewedClients table and includes logID (key), client_id (int), username (nvarchar), lastviewed (datetime).

Here is what I have so far. Can anyone offer any suggestions?SELECT TOP (10) tblUserRecentViewedClients.UserName, tblUserRecentViewedClients.Client_ID, tblClient.FirstName, tblClient.LastName,
tblClient.CompanyName
FROM tblUserRecentViewedClients INNER JOIN
tblClient ON tblUserRecentViewedClients.client_ID = tblClient.client_ID
WHERE tblUserRecentViewedClients.UserName=@UserName
GROUP BY tblUserRecentViewedClients.UserName, tblUserRecentViewedClients.Client_ID, tblClient.FirstName, tblClient.LastName,
tblClient.CompanyName