Gumy has worked with Argentines Guillermo Canas and Guillermo Coria, as well as Brazilian Kuerten.

BBC: Safin and Nalbandian hire coaches

Nieminen, the world number 29, secured his place with a 6-4 3-6 7-5 win over Argentine sixth seed Guillermo Canas.

BBC: Federer brushes aside Del Potro

Argentina's Guillermo Canas, currently ranked 16th in the entry system, will make his first appearance on the Queen's Club grass.

BBC: Hewitt heads Queen's Club entries

Mathieu is joined in the next round by French compatriots Gilles Simon, the 10th seed, and Gael Monfils after their respective wins over Guillermo Canas of Argentina and Romanian Victor Hanescu.

CNN: Federer, Nadal and Djokovic cruise through

World number one Rafael Nadal will face Florent Serra in the second round after the Frenchman beat Guillermo Canas, and there were first-round wins for Radek Stepanek, Ivan Ljubicic, Philipp Kohlschreiber, Robin Soderling and Andy Roddick.

BBC: Del Potro eases through in Paris