negative border radius
.player {
width: 480px;
height: 80px;
border-radius:0 40px 40px 0;
background-color:#0000FF;
position:relative;
color:#FFF;
}
.player:before
{
width: 80px;
height: 80px;
border-radius:0 40px 40px 0;
background-color:#FFF;
display:inline-block;
vertical-align: middle;
margin-right: 10px;
content: '';
}