diff --git a/grammar/src/expressions.grm b/grammar/src/expressions.grm
index a82cd991db2..9f4151f48ee 100644
--- a/grammar/src/expressions.grm
+++ b/grammar/src/expressions.grm
@@ -73,7 +73,7 @@ prefixUnaryExpression
   ;
 
 postfixUnaryExpression
-  : memberAccess postfixUnaryOperation*
+  : atomicExpression postfixUnaryOperation*
   ;
 
 // !!! When you add here, remember to update the FIRST set in the parser
@@ -177,15 +177,6 @@ memberAccessOperation
   : "." : "?." : "#"
   ;
 
-functionCall
-  : functionExpression typeArguments valueArguments? functionLiteral?
-  : functionExpression valueArguments functionLiteral?
-  ;
-
-functionExpression
-  : expression
-  ;
-
 typeArguments
   : "<" type{","} ">"
   ;
@@ -194,11 +185,6 @@ valueArguments
   : "(" (SimpleName "=")? ("out" | "ref")? expression{","} ")"
   ;
 
-infixFunctionCall
-  : expression SimpleName typeArguments
-  : expression SimpleName expression
-  ;
-
 jump
   : "throw" expression
   : "return" expression?
@@ -231,16 +217,6 @@ constructorInvocation
   : userType valueArguments?
   ;
 
-memberAccess
-  : functionCall
-  : fieldOrPropertyAccess
-  : functionLiteral // no parameters allowed
-  ;
-
-fieldOrPropertyAccess
-  : (FieldName | SimpleName) arrayAccess?
-  ;
-
 arrayAccess
   : "[" expression{","} "]"
   ;