NBA News Roundup, Tuesday, April 30th: Lakers to miss out on Anthony Davis, Billy Donovan to remain with the Thunder and more

The second round of the 2019 playoffs is currently dazzling the basketball world, and the upcoming off-season is also generating plenty of excitement. The NBA draft will take place in less than two months time, while a number of the NBA's top free agents also have major decisions to make on where they will be playing for the 19/20 season.

So, with plenty going on around the league, here is everything you need to know for Tuesday, April 30th.

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Billy Donovan is likely to return as Thunder coach next season

Billy Donovan has failed to win a playoff series since 2016

Billy Donovan's future has once again been called into question following the Oklahoma City Thunder's disappointing first-round playoff defeat to the Portland Trail Blazers. OKC's 4-1 series loss means that the team has still failed to win a series since the departure of Kevin Durant in 2016, however, general manager Sam Presti has told the media that he expects Donovan to remain as head coach next season:

I think he does a really good job. But these jobs are really hard. You can draw up the best plays or you can put together what you feel is a really good team, and sometimes it doesn't come to fruition because there's so many other competing factors and forces that are at play.

I do think getting his (Donovan's) perspective on things is important because there's nobody that works harder than him. If anything, I think he needs to take some time to think through the season himself.

Donovan joined the Thunder back in 2015, and he has guided the team to the playoffs in each of his four seasons in charge. However, the former Gators coach has been criticised for his inability to transform OKC into contenders, and Presti's vote of confidence may frustrate certain sections of the Thunder fanbase.

Lakers' prospects of signing Anthony Davis are 'slim'

Anthony Davis ahead of the 2019 NBA All-Star Game

Ever since LeBron James landed in Los Angeles last summer, the Lakers have been eyeing Anthony Davis. The Lakers are believed to view the 26-year-old as the player who can thrive alongside LeBron James, before eventually becoming the face of the franchise.

In fact, the Lakers have so much belief in Davis that they offered nearly their entire roster to the Pelicans ahead of the February trade deadline. However, New Orleans refused to enter serious trade talks, and Gabe Zaldivar of Forbes is reporting that the Lakers' prospects of completing a deal for Davis this summer are 'slim'.

The Boston Celtics are also expected to make a move for Davis this summer, and if Boston is willing to include Jayson Tatum in trade talks, it is difficult to envision Davis playing for anyone other than the Celtics next year.

Rockets believe rogue officiating cost them an NBA championship

The Golden State Warriors defeated the Houston Rockets in the 2018 Western Conference Finals

The Golden State Warriors defeated the Houston Rockets in last year's epic Western Conference Finals, and the two rivals are currently facing off once more. Golden State took home Game 1 on Sunday night, although the result was overshadowed by the Rockets complaining about a number of non-calls from refs.

In the aftermath, a report has emerged from last year in which Houston highlight 81 potential missed calls and non-calls from Game 7 of last year's West Finals. According to ESPN, the report also claims that refs cost the Rockets the 2018 Championship:

Referees likely changed the eventual NBA champion," says the memo, addressed to Byron Spruell, the NBA's president of league operations. There can be no worse result for the NBA.

Golden State takes their 1-0 lead into Game 2 tonight, although all eyes will once again be on the officials.