He posted a cute picture of the pair and said: 'Best

Australian basketball star Matthew Dellavedova became engaged to long-time partner Anna Schroeder after he popped the question on Sunday morning.

The 26-year-old Boomer made the announcement only three days after his birthday via Twitter and Facebook with a cute picture of the loved-up couple.

'Best teammate I'll ever have,' he wrote.

Australian Basketball star Matthew Dellavedova (right) is engaged to long-time partner Anna Schroeder (left) after he popped the question on Saturday morning

Dellavedova won an NBA Championship with Cleveland last year and returned from narrowly missing out on an Olympic Medal in Rio in August (pictured)

The pair can barely hold their smiles back as Ms Schroeder holds up her hand showing off the impressive ring.

They met at St Mary's College in California, where the point guard was signed with the Gaels, and Schroeder played in the volleyball team, The Herald Sun reported.

Dellavedova won an NBA Championship with Cleveland this year and returned from narrowly missing out on an Olympic Medal in Rio in August.

He recently joined the Milwakee Bucks on a four-year $51 million contract and will begin playing at the end of September.