Thomas and Alfred lit up the women's sprint disciplines at the Paris Olympics in 2024, the American winning 200m gold while Alfred bagged a first-ever medal of any colour for her tiny Caribbean island homeland of St Lucia when she claimed victory in the 100m.Thomas will be making her first Diamond League appearance in two years in Monaco after suffering an achilles injury last season.The American is already in formidable form, having clocked 21.70sec in Texas last month, then a world lead and still the second-fastest time in the world this year.She faces a tough test in Monaco, going up against world leader Adaejah Hodge, fellow US star Anavia Battle and Alfred, who is unbeaten outdoors this season."It's a great field with amazing competitors so I'm looking forward to seeing what we can bring out of each other," said Thomas.Alfred said the line-up was "exciting"."Gabby's a big competitor so I'm just looking forward to having a race," said Alfred, who confirmed that she would not be taking part in the Commonwealth Games in Glasgow in July.While this is a season without a world championships or Olympic Games, World Athletics is to introduce its inaugural biennial invitational Ultimate World Championship to bring the curtain down on the season in Budapest in September.Family visitsBut for Thomas and Alfred, it remains a season in which family commitments could -- for once -- be kept alongside competition demands."I've been going back to St Lucia every month," said Alfred.