I'm sad to say Karlis has decided to retire from being a professional tennis player
He says he's been lacking motivation lately to get to the top 100 and also the many injuries he's had played a part in his decision. His future plans are not fixed yet but he wants to keep doing something tennis-related, probably coaching. Maybe get into a US college and/or tennis academy.
sportacentrs.com says they will have a longer interview with Karlis in a couple of days.