Warren County’s tennis teams were relentless Tuesday afternoon versus Cumberland County as the Pioneer and Lady Pioneer teams kept the Jets grounded during doubles and singles matches. Not a single match was won by Cumberland County.In all, the Pioneers went 9-0 in their doubles and singles matches and the Lady Pioneers followed suit by matching that total and defeated the Lady Jets 9-0 as well.WCHS tennis coach Jessica Hines said, “This was a real confidence booster for our boys and it was their first district win. Other matches besides Cookeville have been very close.