Worcester head coach Richard Hill has praised new signings Josh Drauniniu and Erri Claassens after the Warriors' 15-3 friendly win over Melbourne.
He told BBC Hereford & Worcester: "The fans have seen Drauniniu and Claassens cut us to shreds for London Welsh.
"To have them come in and hit that sort of standard means that we are now looking good in a number of positions."
Claassens, 28, who plays full-back or wing, and winger Drauniniu, 25, both signed for Warriors in April.
Hill believes that his side showed strength in both defence and attack in their victory over Australian side Melbourne at Sixways on Monday.
Tom Arscott, Alex Grove and Claassens scored tries for the Warriors in the first half, before a more defensive display after the break.
"In the first half some of our attacking was scintillating and we scored some great tries," added Hill.
"They then put us under huge pressure and we defended for 15 minutes solidly but we stood up to it well.
"I think Bath scored one try against this lot and we have scored three so that's great.
"Although we have had to defend heroically in the second half, it is always better when you have scored three tries and are points up.
"Then you have got a lead to defend and you the real incentive to keep defending."
Warriors will continue their build-up to the new season on Saturday, 20 August when they travel to Plymouth Albion (kick-off 1730 BST).
They will then host the Argentine national squad at Sixways on Tuesday, 23 August (kick-off 1945 BST).