Richard Gasquet is set to make his return from injury as one of the seeds at the Estoril Open, while Nick Kyrgios continues his comeback.
Gasquet has been sidelined since Indian Wells with a back injury that has plagued the Frenchman dating back to last year.
He will be the fifth seed at the ATP 250 event played on clay courts in Cascais, Portugal.
Gasquet's first clash back is against Marinko Matosevic, the Australian who is on a six-match losing run.
The 28-year-old Gasquet is a two-time runner-up at the tournament, beaten in finals in 2007 and 2012.
Kyrgios made his return from an ankle injury in Barcelona, where he went down to talented Swedish teenager Elias Ymer in three sets.
The Australian wasted two match points against Ymer to lose his first match since hurting his ankle at Indian Wells.
Seeded seventh, Kyrgios faces Spaniard Albert Ramos in the first round in Estoril.
Feliciano Lopez is the top seed and gets a first-round bye before taking on either Dutchman Robin Haase or Lithuanian Ricardas Berankis.
South African Kevin Anderson is the second seed, in the same half as Leonardo Mayer, Jeremy Chardy, Nicolas Almagro and Gasquet.
Third seed Tommy Robredo is likely to face Pablo Carreno Busta in the second round, while Gilles Muller takes on Portuguese wildcard Frederico Ferreira Silva in his opening outing.
Champion in 2014, Carlos Berlocq is not returning to defend his title.